Multiple catalyst and reactor system for olefin polymerization and polymers produced therefrom

ABSTRACT

This invention relates to a continuous process to produce a branched olefin polymer comprising:  
     1) selecting a first catalyst component capable of producing a polymer having an Mw of 100,000 or less and a crystallinity of 20% or less under selected polymerization conditions;  
     2) selecting a second catalyst component capable of producing polymer having an Mw of 100,000 or less and a crystallinity of 20% (preferably 40% or more)or more at the selected polymerization conditions;  
     3) contacting a catalyst component, one or more activators and one or more C2 to C40 olefins in a first reaction zone, at a temperature of greater than 70° C., and at a residence time of 120 minutes or less; and  
     4) transfering the contents of the first reaction zone to a second reaction zone and further contacting the contents with a catalyst component, an activator and or one or more C2 to C40 olefins, at a temperature of greater than 70° C., and at a residence time of 120 minutes or less; and  
     5) optionally, transferring the contents of the second reaction zone to a third reaction zone and further contacting the contents with a catalyst compound, an activator and or one or more C2 to C40 olefins, at a temperature of greater than 70° C., and at a residence time of 120 minutes or less; and  
     6) recovering a branched olefin polymer comprising at least 50 mole % of one or more C3 to C40 olefins,  
     where the first catalyst component is present in at least one reaction zone and the second catalyst component is present in a second reaction zone and where in at least one reaction zone the C2 to C40 olefin is a C3 to C40 alpha-olefin.

RELATED CASE INFORMATION

[0001] This application is a continuation-in-part of U.S. Ser. No.10/686,951, filed Oct. 15, 2003 which claims priority from U.S. Ser. No.60/418,482, filed Oct. 15, 2002 and U.S. Ser. No. 60/460,714, filed Apr.4, 2003. This application is also a continuation-in-part of U.S. Ser.No. 10/687,508, filed Oct. 15, 2003 which claims priority from U.S. Ser.No. 60/418,482, filed Oct. 15, 2002 and U.S. Ser. No. 60/460,714, filedApr. 4, 2003.

[0002] This application is related to: 1) U.S. Ser. No. 60/199,093 filedon Apr. 21, 2000, 2) U.S. Ser. No. 60/171,715 filed Dec. 21, 1999, 3)U.S. Ser. No. 09/745,394 filed Dec. 21, 2000, 4) U.S. Ser. No.09/746,332 filed Dec.21, 2000, and 5) WO 01/81493.

FIELD OF THE INVENTION

[0003] This invention relates to a process to polymerize olefins usingmultiple catalysts and multiple reactors and polymers producedtherefrom. In particular this invention relates to a process to producepolyolefin adhesives and the adhesives so produced.

BACKGROUND OF THE INVENTION

[0004] For some applications such as adhesives individual polymers donot possess the necessary combination of properties. Individualpolyolefins having certain characteristics are often blended together inthe hope of combining the positive attributes of the individualcomponents. Typically the result is a blend which displays an average ofthe individual properties of the individual resins. For example EP 0 527589 discloses blends of flexible, low molecular weight amorphouspolypropylene with higher molecular weight isotactic polypropylene toobtain compositions with balanced mechanical strength and flexibility.These compositions show better flexibility compared to that of theisotactic polypropylene alone, but are still lacking in other physicalattributes. Physical blends also have the problems of inadequatemiscibility. Unless the components are selected for their compatibilitythey can phase separate or smaller components can migrate to thesurface. Reactor blends, also called intimate blends (a compositioncomprising two or more polymers made in the same reactor or in a seriesof reactors) are often used to address these issues, however findingcatalyst systems that will operate under the same environments toproduce different polymers has been a challenge.

[0005] Multiple catalyst systems have been used in the past to producereactor blends (also called intimate blends) of various polymers andother polymer compositions. Reactor blends and other one-pot polymercompositions are often regarded as superior to physical blends ofsimilar polymers. For example U.S. Pat. No. 6,248,832 discloses apolymer composition produced in the presence of one or morestereospecific metallocene catalyst systems and at least onenon-stereospecific metallocene catalyst system. The resultant polymerhas advantageous properties over the physical blends disclosed in EP 0527 589 and U.S. Pat. No. 5,539,056.

[0006] Thus there has been interest in the art in developing multiplecatalyst systems to produce new polymer compositions. For example, U.S.Pat. No. 5,516,848 discloses the use of two different cyclopentadienylbased transition metal compounds activated with alumoxane ornon-coordinating anions. In particular, the examples disclose, amongother things, catalyst compounds in combination, such as(Me₂Si(Me₄C₅)(N-c-C₁₂H₂₃)TiCl₂ and rac-Me₂Si(H₄Ind)ZrCl₂, orMe₂Si(Me₄C₅)(N-c-C₁₂H₂₃)TiC₁₂ and Me₂Si(Ind₂)HfMe₂, (Ind=indenyl)activated with activators such as methylalumoxane or N,N-dimethylanilinium tetrakis(pentafluorphenyl) borate to produce polypropyleneshaving bimodal molecular weight distributions (Mw/Mn), varying amountsof isotacticity (from 12 to 52 weight % isotactic PP in the product inEx 2, 3 and 4), and having weight average molecular weights over100,000, and some even as high as 1,200,000 for use as thermoplastics.Likewise, U.S. Pat. No. 6,184,327 discloses a thermoplastic elastomercomprising a branched olefin polymer having crystalline sidechains andan amorphous backbone wherein at least 90 mole percent of the sidechainsare isotactic or syndiotactic polypropylene and at least 80 mole percentof the backbone is atactic polypropylene produced by a processcomprising: a) contacting, in solution, at a temperature from about 90°C. to about 120° C., propylene monomers with a catalyst compositioncomprising a chiral, stereorigid transition metal catalyst compoundcapable of producing isotactic or syndiotactic polypropylene; b)copolymerizing the product of a) with propylene and, optionally, one ormore copolymerizable monomers, in a polymerization reactor using anachiral transition metal catalyst capable of producing atacticpolypropylene; and c) recovering a branched olefin polymer. SimilarlyU.S. Pat. No. 6,147,180 discloses the synthesis of a thermoplasticpolymer composition, which is produced by first polymerizing monomers toproduce at least 40% vinyl terminated macromonomers and thencopolymerizing the macromonomers with ethylene. In addition U.S. Pat.No. 6,323,284 discloses a method to produce thermoplastic compositions(mixtures of crystalline and amorphous polyolefin copolymers) bycopolymerizing alpha-olefins and alpha, omega dienes using two separatecatalyst systems.

[0007] Likewise others have experimented with multiple stage processesto produce new polymer compositions. For example EP 0 366 411 disclosesa graft polymer having an EPDM backbone with polypropylene graftedthereto at one or more of the diene monomer sites through, the use of atwo-step process using a different Ziegler-Natta catalyst system in eachstep. This graft polymer is stated to be useful for improving the impactproperties in blended polypropylene compositions.

[0008] Although each of the polymers described in the above referenceshas interesting combinations of properties, there remains a need for newcomposition that offer other new and different property balancestailored for a variety of end uses. In particular, it would be desirableto find a composition that is strong yet has adhesive characteristicsand the ability to be applied using adhesive technology and equipment.

[0009] For general information in this area, one may refer to:

[0010] 1. DeSouza and Casagrande, in 2001 addressed the issue of binarycatalyst systems in “Recent Advances in Olefin Polymerization UsingBinary Catalyst Systems, Macromol. Rapid Commun. 2001, 22, No. 16 (pages1293 to 1301). At page 1299 they report propylene systems that produce a“gooey” product.

[0011] 2. Studies with respect to the production of stereoblockpolypropylene by using in-situ mixtures of metallocene catalysts withdifferent stereoselectivity were recently performed by Lieber andBrintzinger in “Propene Polymerization with Catalyst Mixtures ContainingDifferent Ansa-Zirconocenes: Chain Transfer to Alkylaluminum Cocatalystsand Formation of Stereoblock Polymers”, Macromolecules 2000, 33, No.25(pages 9192-9199). Propylene polymerization reactions were performedusing metallocene catalysts H₄C₂(Flu)₂ZrCl₂,rac-Me₂Si(2-Me-4-tBu-C₅H₂)₂ZrCl₂ and rac-Me₂Si(2-MeInd)₂ZrCl₂ in thepresence of either MAO (methylalumoxane) or triisobutylaluminium(Al^(i)Bu₃)/triphenylcarbenium tetrakis(perfluorophenylborate) (tritylborate) as the cocatalyst. Propylene polymerization using the mixedcatalysts, H₄C₂(Flu)₂ZrCl₂ and rac-Me₂Si(2-MeInd)₂ZrCl₂ in the presenceof either MAO or AliBu₃/trityl borate produced waxy solids, which arecompletely separable into an atactic (diethyl ether-soluble) and anisotactic (insoluble) fraction. Neither fraction contained anycombination of isotactic and atactic pentad patterns indicating thatthese catalyst mixtures did not form stereoblock polymers.

[0012] 3. Aggarwal addressed the various polymers produced in“Structures and Properties of Block Polymers and Multiphase PolymerSystems: An Overview of Present Status and Future Potential”, S. L.Aggarwal, Sixth Biennial Manchester Polymer Symposium (UMIST Manchester,March 1976)

[0013] 4. “Selectivity in Propene Polymerization with MetalloceneCatalysts” Resconi, et al, Chem Rev. 2000, 100, 1253-1345.

[0014] None of the references above has directly addressed the need forpolyolefin based adhesives containing both amorphous and crystallinecomponents. Such adhesives are desired in the industry as a replacementfor blends requiring significant amount of hydrocarbon resin tackifiers.

[0015] Additional references that are of interest include:

[0016] 1) EP Patents: EP 0 619 325 B1, and EP 719 802 B1;

[0017] 2) U.S. patents/Publications: U.S. Pat. Nos. 6,207,606,6,258,903, 6,271,323, 6,340,703, 6,297,301, US 2001/0007896 A1, U.S.Pat. Nos. 6,184,327, 6,225,432, 6,342,574, 6,147,180, 6,114,457,6,143,846, 5,998,547, 5,696,045; 5,350,817, and 6,659,965.

[0018] 3) PCT Publications: WO 00/37514, WO 01/81493, WO 98/49229, WO98/32784; and WO 01/09200

[0019] 4) “Metallocene-Based Branch-Block thermoplastic Elastomers,”Markel, et al. Macromolecules 2000, Volume 33, No. 23. pgs 8541-8548.

SUMMARY OF THE INVENTION

[0020] This invention relates to a continuous process to produce abranched olefin polymer comprising:

[0021] 1) selecting a first catalyst component capable of producing apolymer having an Mw of 100,000 or less and a crystallinity of 20% orless under selected polymerization conditions;

[0022] 2) selecting a second catalyst component capable of producingpolymer having an Mw of 100,000 or less and a crystallinity of 20% ormore, (preferably 40% or more) at the selected polymerizationconditions;

[0023] 3) contacting a catalyst component, one or more activators andone or more C2 to C40 olefins in a first reaction zone, at a temperatureof greater than 70° C., and at a residence time of 120 minutes or less;and

[0024] 4) transfering the contents of the first reaction zone to asecond reaction zone and further contacting the contents with a catalystcomponent, an activator and or one or more C2 to C40 olefins, at atemperature of greater than 70° C., and at a residence time of 120minutes or less; and

[0025] 5) optionally, transferring the contents of the second reactionzone to a third reaction zone and further contacting the contents with acatalyst compound, an activator and or one or more C2 to C40 olefins, ata temperature of greater than 70° C., and at a residence time of 120minutes or less; and

[0026] 6) recovering a branched olefin polymer comprising at least 50mole % of one or more C3 to C40 olefins,

[0027] where the first catalyst component is present in at least onereaction zone and the second catalyst component is present in a secondreaction zone and where in at least one reaction zone the C2 to C40olefin is a C3 to C40 alpha-olefin.

DETAILED DESCRIPTION

[0028] For the purposes of this invention and the claims thereto and forease of reference when a polymer is referred to as comprising an olefin,the olefin present in the polymer is the polymerized form of the olefin.

[0029] In another embodiment this invention relates to a polymercomprising one or more C3 to C40 olefins, preferably propylene, and lessthan 50 mole % of ethylene, having:

[0030] a) a Dot T-Peel between 1 Newton and the 10,000 Newtons; and

[0031] b) a Mz/Mn of 2 to 200; and/or

[0032] c) an Mw of X and a g′ of Y (measured at the Mz of the polymer)according to the following Table C: TABLE C X (Mw) Y (g′) 100,000 orless, preferably 80,000 or less, preferably 70,000 or less, more 0.9 orless, preferably 60,000 or less, more preferably 50,000 or less, morepreferably preferably 40,000 or less, more preferably 30,000 or less,more preferably 20,000 or less, 0.7 or less more preferably 10,000 orless. In some embodiments X is also at least 1000, Preferably preferablyat least 2000, more preferably at least 3000, more preferably at leastbetween 4000, more preferably at least 5000, more preferably at least7000, more 0.3-0.9 preferably 10,000, more preferably at least 15,000.75,000 or less, preferably 70,000 or less, more preferably 60,000 orless, more 0.92 or less, preferably 50,000 or less, more preferably40,000 or less, more preferably preferably, 30,000 or less, morepreferably 20,000 or less, more preferably 10,000 or less. 0.6 or lessIn some embodiments A is also at least 1000, preferably at least 2000,more preferably preferably at least 3000, more preferably at least 4000,more preferably at least between 5000, more preferably at least 7000,more preferably 10,000, more preferably at 0.4-0.6- least 15,000. 50,000or less, more preferably 40,000 or less, more preferably 30,000 or less,0.95 or less, more preferably 20,000 or less, more preferably 10,000 orless. In some preferably embodiments A is also at least 1000, preferablyat least 2000, more preferably 0.7 or less at least 3000, morepreferably at least 4000, more preferably at least 5000, preferably morepreferably at least 7000, more preferably 10,000, more preferably atleast between 15,000. 0.5-0.7- 30,000 or less, preferably 25,000 orless, more preferably 20,000 or less, more 0.98 or less preferably15,000 or less, more preferably 10,000 or less. In some preferablyembodiments A is also at least 1000, preferably at least 2000, morepreferably between at least 3000, more preferably at least 4000, morepreferably at least 5000, 0.7-0.98 more preferably at least 7000, morepreferably 10,000, more preferably at least 15,000.

[0033] In a some embodiments the g′ is 0.9 or less, 0.8 or less, 0.7 orless, 0.6 or less, 0.5 or less, 0.4 or less, 0.3 or less measured at theMz of the polymer.

[0034] In another embodiment the polymer described above also has a peakmelting point (Tm) between 40 and 250° C., or between 60 and 190° C., orbetween about 60 and 150° C., or between 80 and 130° C. In someembodiments the peak melting point is between 60 and 160° C. In otherembodiments the peak melting point is between 124-140° C. In otherembodiments the peak melting temperature is between 40-130° C.

[0035] In another embodiment the polymer described above also has aviscosity of 90,000 mPa.sec or less at 190° C. (as measured by ASTM D3236 at 190° C.); or 80,000 or less, or 70,000 or less, or 60,000 orless, or 50,000 or less, or 40,000 or less, or 30,000 or less, or 20,000or less, or 10,000 or less, or 8,000 or less, or 5000 or less, or 4000or less, or 3000 or less, or 1500 or less, or between 250 and 6000mPa.sec, or between 500 and 5500 mPa.sec, or between 500 and 3000mPa.sec, or between 500 and 1500 mPa.sec, and/or a viscosity of 8000mPa.sec or less at 160° C. (as measured by ASTM D 3236 at 160° C.); or7000 or less, or 6000 or less, or 5000 or less, or 4000 or less, or 3000or less, or 1500 or less, or between 250 and 6000 mPa.sec, or between500 and 5500 mPa.sec, or between 500 and 3000 mPa.sec, or between 500and 1500 mPa.sec. In other embodiments the viscosity is 200,000 mPa.secor less at 190 ° C., depending on the application. In other embodimentsthe viscosity is 50,000 mPa.sec or less depending on the applications.

[0036] In another embodiment the polymer described above also has a heatof fusion of 70 J/g or less, or 60 J/g or less, or 50 J/g or less; or 40J/g or less, or 30 J/g or less, or 20 J/g or less and greater than zero,or greater than 1 J/g, or greater than 10 J/g, or between 20 and 50 J/g.

[0037] In another embodiment the polymer described above also has aShore A Hardness (as measured by ASTM 2240) of 95 or less, 70 or less,or 60 or less, or 50 or less, or 40 or less or 30 or less, or 20 orless. In other embodiments the Shore A Hardness is 5 or more, 10 ormore, or 15 or more. In certain applications, such as packaging, theShore A Hardness is preferably 60-70.

[0038] In another embodiment the polymer of this invention has an Mz/Mnof 2 to 200, preferably 2 to 150, preferably 10 to 100.

[0039] In another embodiment the polymer described above also has aShear Adhesion Fail Temperature (SAFT—as measured by ASTM 4498) of 200°C. or less, or of 40 to 150° C., or 60 to 130° C., or 65 to 110° C., or70-80° C. In certain embodiments SAFT's of 130-140° C. are preferred.

[0040] In another embodiment the polymer described above also has a DotT-Peel of between 1 Newton and 10,000 Newtons, or 3 and 4000 Newtons, orbetween 5 and 3000 Newtons, or between 10 and 2000 Newtons, or between15 and 1000 Newtons. Dot T-Peel is determined according to ASTM D 1876,except that the specimen is produced by combining two 1 inch by 3 inch(2.54 cm×7.62 cm) Kraft paper substrate cut outs with a dot of adhesivewith a volume that, when compressed under a 500 gram weight occupiesabout 1 square inch of area (1 inch=2.54 cm). Once made all thespecimens are pulled apart in side by side testing (at a rate of 2inches per minute) by a machine that records the destructive force ofthe insult being applied. The maximum force achieved for each sampletested was recorded and averaged, thus producing the Average MaximumForce which is reported as the Dot T-Peel.

[0041] In another embodiment the polymer described above also has a settime of several days to 1 second, or 60 seconds or less, or 30 secondsor less, or 20 seconds or less, or 15 seconds or less, or 10 seconds orless, or 5 seconds or less, or 4 seconds or less, or 3 seconds or less,more or 2 seconds or less, or 1 second or less.

[0042] In another embodiment the polymer described above also has anMw/Mn of 2to 75,or 4to 60,or 5to 50,or 6to 20.

[0043] In another embodiment the polymer described above also has an Mzof 500,000 or less, preferably 15,000 to 500,000, or 20,000 to 400,000,or 25,000 to 350,000.

[0044] In another embodiment the polymer described above may also have astrain at break (as measured by ASTM D-1708 at 25° C.) of 50 to 1000%,preferably 80 to 200%. In some other embodiments the strain at break is100 to 500%.

[0045] In another embodiment, the polymer described herein has a tensilestrength at break (as measured by ASTM D-1708 at 25° C.) of 0.5 MPa ormore, alternatively 0.75 MPa or more, alternatively 1.0 MPa or more,alternatively 1.5 MPa or more, alternatively 2.0 MPa or more,alternatively 2.5 MPa or more, alternatively 3.0 MPa or more,alternatively 3.5 MPa or more.

[0046] In another embodiment the polymer described above also has acrystallization point (Tc) between 20 and 110° C. In some embodimentsthe Tc is between 70 to 100° C. In other embodiments the Tc is between30 to 80° C. In other embodiments the Tc is between 20 to 50° C.

[0047] In some embodiment the polymers described above has a slope of−0.1 or less, preferably −0.15 or less, more preferably −0.25 or less inthe trace of complex viscosity versus temperature as shown in FIG. 1 (asmeasured by ARES dynamic mechanical spectrometer operating at afrequency of 10 rad/s, with a strain of 20% under a nitrogen atmosphere,and a cooling rate of 10° C./min) over the range of temperatures from Tc+10° C. to Tc+40° C. The slope is defined as a derivative of log(complex viscosity) with respect to temperature.

[0048] In another embodiment the polymer described above has a Tc thatis at least 10° C. below the Tm, preferably at least 20° C. below theTm, preferably at least 30° C. below the Tm, more preferably at least35° C. below the Tm.

[0049] In another embodiment some polymers described above have a meltindex ratio (I₁₀/I₂) of 6.5 or less, preferably 6.0 or less, preferably5.5 or less, preferably 5.0 or less, preferably 4.5 or less, preferablybetween 1 and 6.0. (I₁₀ and I₂ are measured according to ASTM 1238 D,2.16kg, 190° C.).

[0050] In another embodiment some polymers described above have a meltindex (as determined by ASTM 1238 D, 2.16 kg, 190 deg. C.) of 25 dg/minor more, preferably 50 dg/min or more, preferably 100 dg/min or more,more preferably 200 dg/min or more, more preferably 500 dg/mn or more,more preferably 2000 dg/min or more.

[0051] In another embodiment the polymer has a melt index of 900 dg/minor more.

[0052] In another embodiment the polymer described above has a range ofcrystallization of 10 to 60° C. wide, preferably 20 to 50° C.,preferably 30 to 45° C. in the DSC traces. In DSC traces where there aretwo or more non-overlapping peaks, then each peak has a range ofcrystallization of 10 to 60° C. wide, preferably 20 to 50° C.,preferably 30 to 45° C. in the DSC traces.

[0053] In another embodiment the polymer produced by this invention hasa molecular weight distribution (Mw/Mn) of at least 2, preferably atleast 5, preferably at least 10, even more preferably at least 20.

[0054] In another embodiment the polymer produced may have a unimodal,bimodal, or multimodal molecular weight distribution (Mw/Mn)distribution of polymer species as determined by Size ExclusionChromatography (SEC). By bimodal or multimodal is meant that the SECtrace has more than one peak or inflection points. An inflection pointis that point where the second derivative of the curve changes in sign(e.g., from negative to positive or vice versus).

[0055] In another embodiment the polymer described above has an Energyof activation of 8 to 15 cal/mol. Energy of activation was calculatedusing the relationships of complex viscosity and temperature over theregion where thermal effects are responsible for viscosity increase(assuming an Arrhenius-like relationship).

[0056] In another embodiment the polymers of this invention may have acrystallinity of at least 5%.

[0057] In another embodiment the polymer described above may also haveone or more of the following:

[0058] a) a peak melting point between 60 and 190° C., or between about60 and 150° C., or between 80 and 130° C.; and/or

[0059] b) a viscosity of 8000 mPa.sec or less at 190° C. (as measured byASTM D 3236 at 190° C.); or 5000 or less, or 4000 or less, or 3000 orless, or 1500 or less, or between 250 and 6000 mPa.sec, or between 500and 5500 mPa.sec, or between 500 and 3000 mPa.sec, or between 500 and1500 mPa.sec, or a viscosity of 8000 mPa.sec or less at 160° C. (asmeasured by ASTM D 3236 at 160° C.); or 7000 or less, or 6000 or less,or 5000 or less, or 4000 or less, or 3000 or less, or 1500 or less, orbetween 250 and 6000 mPa.sec, or between 500 and 5500 mPa.sec, orbetween 500 and 3000 mPa.sec, or between 500 and 1500 mPa.sec; and/or

[0060] c) an Hf (Heat of fusion) of 70 J/g or less, or 60 J/g or less,or 50 J/g or less; or 40 J/g or less, or 30 J/g or less, or 20 J/g orless and greater than zero, or greater than 1 J/g, or greater than 10J/g, or between 20 and 50 J/g; and or

[0061] d) a Shore A Hardness (as measured by ASTM 2240) of 70 or less,or 60 or less, or 50 or less, or 40 or less or 30 or less, or 20 orless; and or

[0062] e) a Shear Adhesion Fail Temperature (SAFT—as measured by ASTM4498) of 40 to 150° C., or 60 to 130° C., or 65 to 110° C., or 70-80° C.; and or;

[0063] f) a Dot T-Peel of between 1 Newton and 10,000 Newtons, or 3 and4000 Newtons, or between 5 and 3000 Newtons, or between 10 and 2000Newtons, or between 15 and 1000 Newtons; and/or

[0064] g) a set time of several days to 0.1 second, or 60 seconds orless, or 30 seconds or less, or 20 seconds or less, or 15 seconds orless, or 10 seconds or less, or 5 seconds or less, or 4 seconds or less,or 3 seconds or less, more or 2 seconds or less, or 1 second or less;and or

[0065] h) an Mw/Mn of greater than 1 to 75, or 2 to 60, or 2 to 50, or 3to 20; and/or

[0066] i) an Mz of 500,000 or less, preferably 15,000 to 500,000, or20,000 to 400,000, or 25,000 to 350,000.

[0067] Useful combinations of features include polymers as describedabove having a Dot T-Peel of between 1 Newton and 10,000 Newtons, or 3and 4000 Newtons, or between 5 and 3000 Newtons, or between 10 and 2000Newtons, or between 15 and 1000 Newtons and:

[0068] 1. an Mw of 30,000 or less, a peak melting point between 60 and190° C., a Heat of fusion of 1 to 70 J/g, a branching index (g′) of 0.90or less measured at the Mz of the polymer; and a melt viscosity of 8000mPa.sec or less at 190° C.; or

[0069] 2. an Mz of 20,000 to 500,000 and a SAFT of 60 to 150° C.; or

[0070] 3. an Mz/Mn of 2-200 and a set time of 2 seconds or less; or

[0071] 4. an Hf (heat of fusion) of 20 to 50 J/g, an Mz or20,000-500,000 and a shore hardness of 50 or less; or

[0072] 5. an Mw/Mn of greater than 1 to 50, a viscosity of 5000 or lessmPa.sec at 190° C.; or

[0073] 6. an Mw of 50,000 or less, a peak melting point between 60 and190° C., a heat of fusion of 2 to 70 J/g, a branching index (g′) of 0.70or less measured at the Mz of the polymer, and a melt viscosity of 8000mPa.sec or less at 190° C.

[0074] In a preferred embodiment, the polymer of this inventioncomprises amorphous, crystalline and branch-block molecular structures.

[0075] In a preferred embodiment the polymer comprises at least 50weight % propylene, preferably at least 60% propylene, alternatively atleast 70% propylene, alternatively at least 80% propylene. In anotherembodiment the polymer comprises propylene and 50 mole % ethylene orless, preferably 45 mole % ethylene or less, more preferably 40 mole %ethylene or less, more preferably 35 mole % ethylene or less, morepreferably 30 mole % ethylene or less, more preferably 25 mole %ethylene or less, more preferably 20 mole % ethylene or less, morepreferably 15 mole % ethylene or less, more preferably 10 mole %ethylene or less, more preferably 5 mole % ethylene or less.

[0076] In another embodiment the polymer produced has a glass transitiontemperature (Tg) as measured by ASTM E 1356 of 0° C. or less, preferably−5° C. or less, alternatively between −5° C. and −40° C., alternativelybetween −5° C. and −15° C.

[0077] In another embodiment the polymer of this invention has anamorphous content of at least 50%, alternatively at least 60%,alternatively at least 70%, even alternatively between 50 and 95%.Percent amorphous content is determined using Differential ScanningCalorimetry measurement according to ASTM E 794-85.

[0078] In another embodiment the polymer of this invention has acrystallinity of at least 40%, preferably at least 30%, alternativelyatleast 35%, alternatively at least 20%, alternatively between 10% and30%. Percent crystallinity content is determined using DifferentialScanning Calorimetry measurement according to ASTM E 794-85. In anotherembodiment the polymer of this invention has a crystallinity of 40% orless, alternatively 30% or less, alternatively 20% or less, evenalternatively between 10% and 30%. Percent amorphous content isdetermined by substracting the % crystallinity from 100.

[0079] In another embodiment the polymer produced by this invention hasa molecular weight distribution (Mw/Mn) of at least 1.5, preferably atleast 2, preferably at least 5, preferably at least 10, evenalternatively at least 20. In other embodiments the Mw/Mn is 20 or less,10 or less, even 5 or less. Molecular weight distribution generallydepends on the catalysts used and process conditions such astemperature, monomer concentration, catalyst ratio, if multiplecatalysts are used, and the presence or absence of hydrogen. Hydrogenmay be used at amounts up to 2 weight %, but is preferably used atlevels of 50 to 500 ppm.

[0080] In another embodiment the polymer produced is found to have atleast two molecular weights fractions are present at greater than 20weight % each based upon the weight of the polymer as measured by GelPermeation Chromatography. The fractions can be identified on the GPCtrace by observing two distinct populations of molecular weights. Anexample would be a GPC trace showing a peak at 20,000 Mw and anotherpeak at 50,000 Mw where the area under the first peak represents morethan 20 weight % of the polymer and the area under the second peakrepresents more than 20 weight % of the polymer.

[0081] In another embodiment the polymer of this invention has 20 weight% or more (based upon the weight of the starting polymer) of hexane roomtemperature soluble fraction, and 70 weight % or less, preferably 50weight % or less of Soxhlet boiling heptane insolubles, based upon theweight of the polymer. Soxhlet heptane insoluble refers to one of thefractions obtained when a sample is fractionated using successivesolvent extraction technique. The fractionations are carried out in twosteps: one involves room temperature solvent extraction, the othersoxhlet extraction. In the room temperature solvent extraction, aboutone gram of polymer is dissolved in 50 ml of solvent (hexane) to isolatethe amorphous or very low molecular weight polymer species. The mixtureis stirred at room temperature for about 12 hours. The soluble fractionis separated from the insoluble material using filtration under vacuum.The insoluble material is then subjected to a Soxhlet extractionprocedure. This involves the separation of polymer fractions based ontheir solubility in various solvents having boiling points from justabove room temperature to 110° C. The insoluble material from the roomtemperature solvent extraction is first extracted overnight with hexane(Soxhlet); the extracted material is recovered by evaporating thesolvent and weighing the residue. The insoluble sample is then extractedwith heptane and after solvent evaporation, it is weighed. Theinsolubles and the thimble from the final stage are air-dried in a hoodto evaporate most of the solvent, then dried in a nitrogen-purged vacuumoven. The amount of insoluble left in the thimble is then calculated,provided the tare weight of the thimble is known.

[0082] In another embodiment, the polymers produced in this inventionhave a heptane insoluble fraction between 20% and 70 weight %, basedupon the weight of the starting polymer, and the heptane insolublefraction has branching index g′ of 0.9 (preferably 0.7) or less asmeasured at the Mz of the polymer. In a preferred embodiment thecomposition also has at least 20 weight % hexane soluble fraction, basedupon the weight of the starting polymer. In another embodiment, thepolymers produced in this invention have a heptane insoluble fractionbetween 20% and 70 weight %, based upon the weight of the startingpolymer and a Mz between 20,000 and 500,000 of the heptane insolubleportion. In a preferred embodiment the composition also has at least 20weight % hexane soluble fraction, based upon the weight of the startingpolymer. In another embodiment the polymers produced have a hexanesoluble portion of at least 20 weight %, based upon the weight of thestarting polymer and that hexane soluble portion has a Tg but not a Tm.

[0083] In another embodiment the polymer of this invention comprisesless than 4.5 mole % of ethylene, preferably less than 4.0 mole %ethylene, alternatively less than 3.5 mole % ethylene, alternativelyless than 3.0 mole % ethylene, alternatively less than 2.5 mole %ethylene, alternatively less than 2.0 mole % ethylene, alternativelyless than 1.5 mole % ethylene, alternatively less than 1.0 mole %ethylene, alternatively less than 0.5 mole % ethylene, alternativelyless than 0.25 mole % ethylene, alternatively 0 mole % ethylene.

[0084] For ease of reference the polymer produced by the second catalysthaving at least 40% crystallinity may also be referred to as the“semi-crystalline polymer” and the polymer produced by the firstcatalyst component having a crystallinity of less than 20% may bereferred to as the “amorphous polymer.”

[0085] In another embodiment of this invention the polymer produced hasa characteristic three-zone complex viscosity-temperature pattern, asshown in FIG. 1. The temperature dependence of complex viscosity wasmeasured using ARES dynamic mechanical spectrometer operating at afrequency of 10 rad/s, with a strain of 20% under a nitrogen atmosphere,and a cooling rate of 10° C./min. The sample was first molten thengradually cooled down to room temperature while monitoring the build-upin complex viscosity. Above the melting point, which is typical ofpolymer processing temperature, the complex viscosity is relatively low(Zone I) and increases gradually with decreaseing temperature. In zoneII, a sharp increase in complex viscosity appears as temperature isdropped. The third zone (Zone III) is the high complex viscosity zone,which appears at lower temperatures corresponding to applicationtemperatures. In Zone III the complex viscosity is high and increasesgradually with further decrease in temperature. Such a complex viscosityprofile provides, in hot melt adhesive applications, a desirablecombination of long opening time at processing temperatures and fast settime at lower temperatures.

[0086] In a preferred embodiment, the polymers produced herein havingless than 1 mol % ethylene, have at least 2 mol% (CH₂)₂ units,preferably 4 mol %, preferably 6 mol %, more preferably 8 mol %, morepreferably 10 mol %, more preferably 12 mol %, more preferably 15 mol %,more preferably 18 mol %, more preferably 20 mol % as measured by Carbon13 NMR as described below.

[0087] In an another embodiment, the polymers produced herein havingbetween 1 and 5 mol % ethylene, have at least 2+X mol % (CH₂)₂ units,preferably 4+X mol %, preferably 6+X mol %, more preferably 8+X mol %,more preferably 10+X mol %, more preferably 12+X mol %, more preferably15+X mol %, more preferably 18+X mol %, more preferably 20+X mol %,where X is the mole % of ethylene as measured by Carbon 13 NMR asdescribed below.

[0088] In a preferred embodiment, the polymers produced herein, havingless than 1 Mol % ethylene, have an amorphous component (which isdefined to be that portion of the polymer composition that has acrystallinity of less than 20%) which contains at least 3 mol% (CH₂)₂units, preferably 4 mol %, preferably 6 mol %, more preferably 8 mol %,more preferably 10 mol %, more preferably 12 mol %, more preferably 15mol %, more preferably 18 mol %, more preferably 20 mol % as measured byCarbon 13 NMR as described below.

[0089] In an another embodiment, the polymers produced herein havingbetween 1 and 5 mol % ethylene, have an amorphous component (which isdefined to be that portion of the polymer composition that has acrystallinity of less than 20%) which contains at least 3+X mol % (CH₂)₂units, preferably 4+X mol %, preferably 6+X mol %, more preferably 8+Xmol %, more preferably 10+X mol %, more preferably 12+X mol %, morepreferably 15+X mol %, more preferably 18+X mol %, more preferably 20+Xmol %, where X is the mole % of ethylene as measured by Carbon 13 NMR asdescribed below.

[0090] Monomers

[0091] In a preferred embodiment the polymer comprises an olefinhomopolymer or copolymer, comprising one or more C3 to C40 alphaolefins. In another preferred embodiment the olefin polymer furthercomprises one or more diolefin comonomers, preferably one or more C4 toC40 diolefins.

[0092] In a preferred embodiment the polymer comprises an olefinhomopolymer or copolymer, having less than 5 mol % ethylene, andcomprising one or more C3 to C40 alpha olefins. In another preferredembodiment the olefin polymer, having less than 5 mol % ethylene,further comprises one or more diolefin comonomers, preferably one ormore C4 to C40 diolefins.

[0093] In a preferred embodiment the polymer produced herein is apropylene homopolymer or copolymer. The comonomer is preferably a C4 toC20 linear, branched or cyclic monomer, and in one embodiment is a C4 toC12 linear or branched alpha-olefin, preferably butene, pentene, hexene,heptene, octene, nonene, decene, dodecene, 4-methyl-pentene-1,3-methylpentene-1,3,5,5-trimethyl-hexene-1, and the like. Ethylene may bepresent at 5 mol % or less.

[0094] In another embodiment the polymer produced herein is a copolymerof one or more linear or branched C3 to C30 prochiral alpha-olefins orC5 to C30 ring containing olefins or combinations thereof capable ofbeing polymerized by either stereospecific and non-stereospecificcatalysts. Prochiral, as used herein, refers to monomers that favor theformation of isotactic or syndiotactic polymer when polymerized usingstereospecific catalyst(s).

[0095] The polymerizable olefinic moiety can be linear, branched,cyclic-containing, or a mixture of these structures. Preferred linearalpha-olefins include C3 to C8 alpha-olefins, more preferably propylene,1-butene, 1-hexene, and 1-octene, even more preferably propylene or1-butene. Preferred branched alpha-olefins include 4-methyl-1-pentene,3-methyl-1-pentene, and 3,5,5-trimethyl-1-hexene, 5-ethyl-1-nonene.Preferred aromatic-group-containing monomers contain up to 30 carbonatoms. Suitable aromatic-group-containing monomers comprise at least onearomatic structure, preferably from one to three, more preferably aphenyl, indenyl, fluorenyl, or naphthyl moiety. Thearomatic-group-containing monomer further comprises at least onepolymerizable double bond such that after polymerization, the aromaticstructure will be pendant from the polymer backbone. The aromatic-groupcontaining monomer may further be substituted with one or morehydrocarbyl groups including but not limited to C1 to C10 alkyl groups.Additionally two adjacent substitutions may be joined to form a ringstructure. Preferred aromatic-group-containing monomers contain at leastone aromatic structure appended to a polymerizable olefinic moiety.Particularly preferred aromatic monomers include styrene,alpha-methylstyrene, para-alkylstyrenes, vinyltoluenes,vinylnaphthalene, allyl benzene, and indene, especially styrene,paramethyl styrene, 4-phenyl-1-butene and allyl benzene.

[0096] Non aromatic cyclic group containing monomers are also preferred.These monomers can contain up to 30 carbon atoms. Suitable non-aromaticcyclic group containing monomers preferably have at least onepolymerizable olefinic group that is either pendant on the cyclicstructure or is part of the cyclic structure. The cyclic structure mayalso be further substituted by one or more hydrocarbyl groups such as,but not limited to, C1 to C10 alkyl groups. Preferred non-aromaticcyclic group containing monomers include vinylcyclohexane,vinylcyclohexene, vinylnorbornene, ethylidene norbornene,cyclopentadiene, cyclopentene, cyclohexene, cyclobutene, vinyladamantaneand the like.

[0097] Preferred diolefin monomers useful in this invention include anyhydrocarbon structure, preferably C4 to C30, having at least twounsaturated bonds, wherein at least two of the unsaturated bonds arereadily incorporated into a polymer by either a stereospecific or anon-stereospecific catalyst(s). It is further preferred that thediolefin monomers be selected from alpha, omega-diene monomers (i.e.di-vinyl monomers). More preferably, the diolefin monomers are lineardi-vinyl monomers, most preferably those containing from 4 to 30 carbonatoms. Examples of preferred dienes include butadiene, pentadiene,hexadiene, heptadiene, octadiene, nonadiene, decadiene, undecadiene,dodecadiene, tridecadiene, tetradecadiene, pentadecadiene,hexadecadiene, heptadecadiene, octadecadiene, nonadecadiene, icosadiene,heneicosadiene, docosadiene, tricosadiene, tetracosadiene,pentacosadiene, hexacosadiene, heptacosadiene, octacosadiene,nonacosadiene, triacontadiene, particularly preferred dienes include1,6-heptadiene, 1,7-octadiene, 1,8-nonadiene, 1,9-decadiene,1,10-undecadiene, 1,11-dodecadiene, 1,12-tridecadiene, 1,13-tetradecadiene, and low molecular weight polybutadienes (Mw less than1000 g/mol). Preferred cyclic dienes include cyclopentadiene,vinylnorbornene, norbornadiene, ethylidene norbornene, divinylbenzene,dicyclopentadiene or higher ring containing diolefins with or withoutsubstituents at various ring positions.

[0098] In a preferred embodiment one or more dienes are present in thepolymer produced herein at up to 10 weight %, preferably at 0.00001 to1.0 weight %, preferably 0.002 to 0.5 weight %, even more preferably0.003 to 0.2 weight %, based upon the total weight of the composition.In some embodiments 500 ppm or less of diene is added to thepolymerization, preferably 400 ppm or less, preferably or 300 ppm orless. In other embodiments at least 50 ppm of diene is added to thepolymerization, or 100 ppm or more, or 150 ppm or more.

[0099] In a preferred embodiment the olefin polymer ishomo-polypropylene. In another preferred embodiment the olefin polymercomprises propylene, ethylene, preferably less than 5 mol % ethylene,and at least one divinyl comonomer. In another preferred embodiment theolefin polymer comprises propylene and at least one divinyl comonomer.

[0100] In another embodiment, the olefin polymer comprises:

[0101] a first monomer present at from 40 to 95 mole %, preferably 50 to90 mole %, preferably 60 to 80 mole %, and

[0102] a comonomer present at from 5 to 40 mole %, preferably 10 to 60mole %, more preferably 20 to 40 mole %, and

[0103] a termonomer present at from 0 to 10 mole %, more preferably from0.5 to 5 mole %, more preferably 1 to 3 mole %.

[0104] In a preferred embodiment the first monomer comprises one or moreof any C3 to C8 linear, branched or cyclic alpha-olefins, includingpropylene, butene (and all isomers thereof), pentene (and all isomersthereof), hexene (and all isomers thereof), heptene (and all isomersthereof), and octene (and all isomers thereof). Preferred monomersinclude propylene, 1-butene, 1-hexene, 1-octene, and the like.

[0105] In a preferred embodiment the comonomer comprises one or more ofany C2 to C40 linear, branched or cyclic alpha-olefins (providedethylene, if present, is present at 5 mole % or less), includingethylene, propylene, butene, pentene, hexene, heptene, and octene,nonene, decene, undecene, dodecene, hexadecene, styrene,3,5,5-trimethylhexene-1,3-methylpentene-1,4-methylpentene-1, norborneneand cyclopentene.

[0106] In a preferred embodiment the termonomer comprises one or more ofany C2 to C40 linear, branched or cyclic alpha-olefins, (preferablyethylene, if present, is present at 5 mole % or less), including, butnot limited to, ethylene, propylene, butene, pentene, hexene, heptene,and octene, nonene, decene, undecene, dodecene, hexadecene, butadiene,1,5-hexadiene, 1,6-heptadiene, 1,4-pentadiene, 1,7-octadiene,1,8-nonadiene, 1,9-decadiene, 1,11-dodecadiene, styrene,3,5,5-trimethylhexene-1,3-methylpentene-1,4-methylpentene-1, andcyclopentadiene.

[0107] In a preferred embodiment the polymer comprises propylene andfrom 0 to 50 mole % ethylene, preferably from 0 to 30 mole % ethylene,more prefeably from 0 to 15 mole % ethylene, more preferably from 0 to10 mole % ethylene, more preferably from 0 to 5 mole % ethylene.

[0108] In a preferred embodiment the polymer comprises propylene andfrom 0 to 50 mole % butene, preferably from 0 to 30 mole % butene, moreprefeably from 0 to 15 mole % butene, more preferably from 0 to 10 mole% butene, more preferably from 0 to 5 mole % butene.

[0109] In a preferred embodiment the polymer comprises propylene andfrom 0 to 50 mole % hexene, preferably from 0 to 30 mole % hexene, moreprefeably from 0 to 15 mole % hexene, more preferably from 0 to 10 mole% hexene, more preferably from 0 to 5 mole % hexene.

[0110] Process

[0111] This invention relates to a continuous process to produce abranched olefin polymer comprising:

[0112] 1) selecting a first catalyst component capable of producing apolymer having an Mw of 100,000 or less and a crystallinity of 20% orless (preferably 5% or less) under selected polymerization conditions;

[0113] 2) selecting a second catalyst component capable of producingpolymer having an Mw of 100,000 or less and a crystallinity of 40%(preferably 20% or more) or more at the selected polymerizationconditions;

[0114] 3) contacting a catalyst component, one or more activators andone or more C2 to C40 olefins in a first reaction zone, at a temperatureof greater than 70° C. (preferably 100° C. or more), and at a residencetime of 120 minutes or less (preferably 60 minutes or less); and

[0115] 4) transfering the contents of the first reaction zone to asecond reaction zone and further contacting the contents with a catalystcomponent, an activator and or one or more C2 to C40 olefins, at atemperature of greater than 70° C. (preferably 100° C. or more), and ata residence time of 120 minutes or less (preferably 60 minutes or less);and

[0116] 5) optionally, transferring the contents of the second reactionzone to a third reaction zone and further contacting the contents with acatalyst compound, an activator and or one or more C2 to C40 olefins, ata temperature of greater than 70° C. (preferably greater than 100° C.),and at a residence time of 120 minutes or less, (preferably 60 minutesor less); and

[0117] 6) recovering a branched olefin polymer comprising at least 50mole % of one or more C3 to C40 olefins,

[0118] where the first catalyst component is present in at least onereaction zone and the second catalyst component is present in a secondreaction zone and where in at least one reaction zone the C2 to C40olefin is a C3 to C40 alpha-olefin.

[0119] This invention further relates to a continuous process to producea branched olefin polymer comprising:

[0120] 1) selecting a first catalyst component capable of producing apolymer having an Mw of 100,000 or less and and a heat of fusion of 70J/g or less (preferably 10 J/g or less) under selected polymerizationconditions;

[0121] 2) selecting a second catalyst component capable of producingpolymer having an Mw of 100,000 or less and a crystallinity of 20% ormore (preferably 30% or more) at the selected polymerization conditions;

[0122] 3) contacting a catalyst component, one or more activators andone or more C2 to C40 olefins in a first reaction zone, at a temperatureof greater than 70° C. (preferably greater than 100° C.), and at aresidence time of 120 minutes or less, (preferably 60 minutes or less);and

[0123] 4) transfering the contents of the first reaction zone to asecond reaction zone and further contacting the contents with a catalystcomponent, an activator and or one or more C2 to C40 olefins, at atemperature of greater than 70° C., (preferably greater than 100° C.),and at a residence time of 120 minutes or less (preferably 60 minutes orless); and

[0124] 5) optionally, transferring the contents of the second reactionzone to a third reaction zone and further contacting the contents with acatalyst compound, an activator and or one or more C2 to C40 olefins, ata temperature of greater than 70° C. (preferably greater than 100° C.),and at a residence time of 120 minutes or less (preferably 60 minutes orless); and

[0125] 6) recovering a branched olefin polymer comprising at least 50mole % of one or more C3 to C40 olefins,

[0126] where the first catalyst component is present in at least onereaction zone and the second catalyst component is present in a secondreaction zone and where in at least one reaction zone the C2 to C40olefin is a C3 to C40 alpha-olefin.

[0127] This invention further relates to a continuous process to producea branched olefin polymer comprising:

[0128] 1) selecting a first catalyst component capable of producing apolymer having an Mw of 100,000 or less and a heat of fusion of 70 J/gor less (preferably 10 J/g or less), capable of polymerizingmacromonomers having reactive termini at the selected polymerizationconditions;

[0129] 2) selecting a second catalyst component capable of producingmacromonomers having reactive termini, an Mw of 100,000 or less and acrystallinity of 20% or more (preferably 30% or more) at the selectedpolymerization conditions;

[0130] 3) contacting a catalyst component, one or more activators andone or more C2 to C40 olefins in a first reaction zone, at a temperatureof greater than 70° C., (preferably greater than 100° C.), and at aresidence time of 120 minutes or less, (preferably 60 minutes or less);and

[0131] 4) transfering the contents of the first reaction zone to asecond reaction zone and further contacting the contents with a catalystcomponent, an activator and or one or more C2 to C40 olefins, at atemperature of greater than 70° C., (preferably greater than 100° C.),and at a residence time of 120 minutes or less, (preferably 60 minutesor less); and

[0132] 5) optionally, transferring the contents of the second reactionzone to a third reaction zone and further contacting the contents with acatalyst compound, an activator and or one or more C2 to C40 olefins, ata temperature of greater than 70° C., (preferably greater than 100° C.),and at a residence time of 120 minutes or less, (preferably 60 minutesor less); and

[0133] 6) recovering a branched olefin polymer comprising at least 50mole % of one or more C3 to C40 olefins,

[0134] where the first catalyst component is present in at least onereaction zone and the second catalyst component is present in a secondreaction zone and where in at least one reaction zone the C2 to C40olefin is a C3 to C40 alpha-olefin.

[0135] This invention further relates to a process to produce the olefinpolymers described above comprising:

[0136] 1) selecting a first catalyst component capable of producing apolymer having an Mw of 30,000 or less and a heat of fusion of 70 J/g orless (preferably 10 J/g or less), capable of polymerizing macromonomershaving reactive termini;

[0137] 2) selecting a second catalyst component capable of producingmacromonomers having reactive termini, an Mw of 30,000 or less and acrystallinity of 20% or more (preferably 30% or more);

[0138] 3) contacting a catalyst component, one or more activators andone or more C2 to C40 olefins in a first reaction zone, at a temperatureof greater than 70° C., (preferably greater than 100° C.), and at aresidence time of 120 minutes or less, (preferably 60 minutes or less);and

[0139] 4) transfering the contents of the first reaction zone to asecond reaction zone and further contacting the contents with a catalystcomponent, an activator and or one or more C2 to C40 olefins, at atemperature of greater than 70° C., (preferably greater than 100° C.),and at a residence time of 120 minutes or less, (preferably 60 minutesor less); and

[0140] 5) optionally, transferring the contents of the second reactionzone to a third reaction zone and further contacting the contents with acatalyst compound, an activator and or one or more C2 to C40 olefins, ata temperature of greater than 70° C., (preferably greater than 100° C.),and at a residence time of 120 minutes or less, (preferably 60 minutesor less); and

[0141] 6) recovering a branched olefin polymer comprising at least 50mole % of one or more C3 to C40 olefins,

[0142] where the first catalyst component is present in at least onereaction zone and the second catalyst component is present in a secondreaction zone and where in at least one reaction zone the C2 to C40olefin is a C3 to C40 alpha-olefin.

[0143] In another preferred embodiment this invention relates to acontinuous process to produce a branched olefin polymer comprising:

[0144] 1) selecting a first catalyst component capable of producing apolymer having an Mw of 100,000 or less, preferably 80,000 or less,preferably 60,000 or less and a crystallinity of 20% or less, preferably15% or less, more preferably 10% or less, under selected polymerizationconditions;

[0145] 2) selecting a second catalyst component capable of producingpolymer having an Mw of 100,000 or less, preferably 80,000 or less,preferably 60,000 or less and a crystallinity of 20% or more, preferably40% or more, preferably 50% or more, more preferbly 60% or more at theselected polymerization conditions;

[0146] 3) contacting a catalyst component, one or more activators andone or more C2 to C40 olefins (preferably one or more C3 to C12 olefins,preferably C3 and one or more of ethylene and/or C4 to C20 comonomers,and, optionally one or more diolefins, preferably a C4 to C20 diene) ina first reaction zone, at a temperature of greater than 70° C.,(preferably greater than 100° C., more preferably greater than 105° C.,more preferably greater than 110° C., more preferably greater than 115°C.), and at a residence time of 120 minutes or less, (preferably 60minutes or less, more preferably 50 minutes or less, preferably 40minutes, preferably 30 minutes or less, preferably 25 minutes or less,more preferably 20 minutes or less, more preferably 15 minutes or less,more preferably at 10 minutes or less, more preferably at 5 minutes orless, more preferably at 3 minutes or less); and

[0147] 4) transfering the contents of the first reaction zone to asecond reaction zone and further contacting the contents with a catalystcomponent, an activator and or one or more C2 to C40 olefins (preferablyone or more C3 to C12 olefins, preferably C3 and one or more of ethyleneand/or C4 to C20 comonomers, and, optionally one or more diolefins,preferably a C4 to C20 diene), at a temperature of greater than 70° C.,preferably greater than 100° C., more preferably greater than 105° C.,more preferably greater than 110° C., more preferably greater than 115°C.), and at a residence time of 120 minutes or less, preferably 60minutes or less, more preferably 50 minutes or less, preferably 40minutes, preferably 30 minutes or less, preferably 25 minutes or less,more preferably 20 minutes or less, more preferably 15 minutes or less,more preferably at 10 minutes or less, more preferably at 5 minutes orless, more preferably at 3 minutes or less); and

[0148] 5) optionally, transferring the contents of the second reactionzone to a third reaction zone and further contacting the contents with acatalyst compound, an activator and or one or more C2 to C40 olefins(preferably one or more C3 to C12 olefins, preferably C3 and one or moreof ethylene and/or C4 to C20 comonomers, and, optionally one or morediolefins, preferably a C4 to C20 diene), at a temperature of greaterthan 70° C., (preferably greater than 100° C., more preferably greaterthan 105° C., more preferably greater than 110° C., more preferablygreater than 115° C.), and at a residence time of 120 minutes or less,(preferably 60 minutes or less, more preferably 50 minutes or less,preferably 40 minutes, preferably 30 minutes or less, preferably 25minutes or less, more preferably 20 minutes or less, more preferably 15minutes or less, more preferably at 10 minutes or less, more preferablyat 5 minutes or less, more preferably at 3 minutes or less); and

[0149] 6) recovering a branched olefin polymer comprising at least 50mole % of one or more C3 to C40 olefins, where the first catalystcomponent is present in at least one reaction zone and the secondcatalyst component is present in a second (preferably different)reaction zone and where in at least one reaction zone the C2 to C40olefin is a C3 to C40 alpha-olefin; and

[0150] a) wherein the ratio of the first catalyst to the second catalystis from 1:1 to 50:1, preferably 1:1 to 30:1, preferably 1:1 to 20:1,more preferably 1:1 to 1:10;

[0151] b) wherein the activity of the catalyst components is at least 3kilograms, preferably at least 50 kilograms, more preferably at least100 kilograms, more preferably at least 200 kilograms, more preferably,300 kilograms, more preferably 400 kilograms, more preferably 50kilograms of polymer per gram of the catalyst mixture; and wherein atleast 80%, preferably at least 85%, more preferably at least 90%, morepreferably at least 95% of the olefins are converted to polymer.

[0152] In another embodiment at least 20% or more of the olefins areconverted to polymer, preferably 20% or more, more preferably 60% ormore, more preferably 75% or more, more preferably 85% or more, morepreferaby 95% or more.

[0153] In a preferred embodiment the process described above takes placein a solution phase, slurry or bulk phase polymerization process.

[0154] By continuous is meant a system that operates (or is intended tooperate) without interuption or cessation. For example a continuousprocess to produce a polymer would be one wherethe reactants arecontinually introduced into one or more reactors and polymer product iscontinually withdrawn.

[0155] In another preferred embodiment, in the process described abovethe concentrations of the reactants vary by 20% or less in the reactionzone during the residence time, preferably by 15% or less, morepreferably by 10% or less. In a preferred embodiment the concentrationof the monomer(s) remains constant in the reaction zone during theresidence time. Preferably the concentration of the monomer(s) varies by20% or less, preferably by 15% or less, more preferably by 10% or less,more preferably by 5% or less.

[0156] In a preferred embodiment the concentration of the catalystcomponents remains constant in the reaction zone during the residencetime. Preferably the concentration of the monomer(s) varies by 20% orless, preferably by 15% or less, more preferably by 10% or less, morepreferably by 5% or less.

[0157] In a preferred embodiment the concentration of the activator(s)remains constant in the reaction zone during the residence time.Preferably the concentration of the monomer(s) varies by 20% or less,preferably by 15% or less, more preferably by 10% or less, morepreferably by 5% or less.

[0158] In another preferred embodiment a third catalyst (or more) may bepresent in the processes described above. The third catalyst may be anyof the catalyst components listed herein. Preferred third catalystsinclude catalysts that are capable of producing waxes. Particularlypreferred third catalysts include those capable of producing polymerhaving an Mw of 20,000 or less and a crystallinity of 10% or less at theselected polymerization conditions. In another embodiment, particularlypreferred third catalysts include those capable of producing polymerhaving an Mw of 20,000 or less and a crystallinity of 10% or more,preferably 20% or more, at the selected polymerization conditions.

[0159] Other preferred third catalysts may include any catalystdescribed herein. One may select two or more catalysts to producevarious macromonomers having reactive termini, used in combination witha catalyst that can polymerize such macromonomers. One may select two ormore catalysts that can polymerize macromonomers and one catalyst thatcan produce macromonomers with reactive termini. Likewise one could alsoselect three catalysts that produce different polymers under the samereaction conditions. For example one could select a catalyst thatproduces a somewhat crystalline polymer, one that produces a verycrystalline polymer and one that produces an amorphous polymer, any ofwhich may produce macromonomers with reactive termini or polymerizepolymers having reactive termini. Similarly one could select twocatalysts, one that produces crystalline polymers and one that producesan amorphous polymer, any of which may make macromonomers with reactivetermini or polymerize polymers having reactive termini. Likewise onecould select a catalyst that produces a somewhat crystalline polymer,one that produces a wax and one that produces an amorphous polymer, anyof which may make macromonomers with reactive termini or polymerizepolymers having reactive termini.

[0160] By reaction zone is meant an area where the activated catalystand monomers can react.

[0161] By macromonomers having reactive termini is meant a polymerhaving twelve or more carbon atoms (preferably 20 or more, morepreferably 30 or more, more preferably between 12 and 8000 carbon atoms)and having a vinyl, vinylidene, vinylene or other terminal group thatcan be polymerized into a growing polymer chain. By capable ofpolymerizing macromonomer having reactive termini is meant a catalystcomponent that can incorporate a macromonomer (which tend to bemolecules larger than a typical single monomer such as ethylene orpropylene), having reactive termni into a growing polymer chain. Vinylterminated chains are generally more reactive than vinylene orvinylidene terminated chains.

[0162] In a preferred embodiment propylene is present in the first,second and or third reaction zone, preferably at an amout of 20 to 100weight %, based upon the weight of the monomers present in the reactionzone, preferably 40 to 99 weight %, more preferably 60 to 95 weight %.

[0163] In a preferred embodiment ethylene is present in the first,second and or third reaction zone, preferably at an amount of up to 50weight %, preferably at 1 to 40 weight %, preferably 5-20 weight %,preferably at 5-10 weight%, based upon the weight of the monomers in thereaction zone. In another embodiment, ethylene is not present in thereaction zone, or if present is present at 10 weight % or less,preferably 5 weight % or less, preferably 3 weight % or less, preferably2 weight % or less, preferably 1 weight % or less, preferably 0.5 weight% or less, based uon the weight of the monomers in the reaction zone.

[0164] In a preferred embodiment ethylene and propylene are present inthe first, second and or third reaction zone.

[0165] In another embodiment propylene is present in the first reactionzone at 100 weight %, (based upon the weight of the monomers present inthe first reaction zone) and ethylene is present in the second reactionzone at up to 50 weight %, (based upon the weight of the monomerspresent in the second reaction zone).

[0166] In another embodiment ethylene is present in the first reactionzone at 100 weight %, (based upon the weight of the monomers present inthe first reaction zone).

[0167] In another embodiment propylene is present at 100 weight %,(based upon the weight of the monomers present in the first reactionzone) in the first reaction zone and the second reaction zone.

[0168] In another embodiment propylene and ethylene are present in thethe first reaction zone and no ethylene, other than residual ethylenemonomer present in the contents of the first reaction zone, isintroduced into the second reaction zone.

[0169] In another embodiment ethylene is intermittently introduced intoone or more reaction zones.

[0170] In another embodiment propylene is present in the first reactionzone, ethylene is present in the second reaction zone, the secondcatalyst component is present in the first reaction zone, and the firstcatalyst component is present in the second reaction zone.

[0171] In another embodiment propylene is present in the first reactionzone, propylene and ethylene or other monomers are present in the secondreaction zone, the second catalyst component is present in the firstreaction zone, and the first catalyst component is present in the secondreaction zone.

[0172] In another embodiment propylene is present in the first reactionzone, propylene and ethylene are present in the second reaction zone,the second catalyst component is present in the first reaction zone, andthe first catalyst component is present in the second reaction zone.

[0173] In another embodiment propylene and ethylene are present in thefirst reaction zone, propylene is present in the second reaction zone,the first catalyst component is present in the first reaction zone, andthe second catalyst component is present in the second reaction zone.

[0174] In another embodiment propylene is present in the first reactionzone, propylene and ethylene are present in the second reaction zone,the second catalyst component is present in the first reaction zone, andthe second catalyst component is present in the second reaction zone.

[0175] In another embodiment ethylene is present in the first reactionzone, propylene and ethylene or other monomers are present in the secondreaction zone, the first catalyst component is present in the firstreaction zone, and the first and the second catalyst components arepresent in the second reaction zone, and the catalyst compound presentin the first reaction zone is capable of producing polymer having an Mwof 20,000 or less and a crystallinity of 50% or more at the selectedpolymerization conditions.

[0176] In another embodiment ethylene is present in the first reactionzone, propylene is present in the second reaction zone, propylene ispresent in the third reaction zone, the first catalyst component ispresent in the second reaction zone, and the second catalyst componentis present in the third reaction zone, and the catalyst compound presentin the first reaction zone is capable of producing polymer having an Mwof 20,000 or less and a crystallinity of 10% or less at the selectedpolymerization conditions.

[0177] In another embodiment ethylene is present in the first reactionzone, propylene is present in the second reaction zone, propylene ispresent in the third reaction zone, the first catalyst component ispresent in the second reaction zone, and the second catalyst componentis present in the third reaction zone, and the catalyst compound presentin the first reaction zone is capable of producing polymer having an Mwof 20,000 or less and a crystallinity of 10% or more, preferably 20% ormore, preferably 30% or more, preferably 40% or more, preferably 50% ormore at the selected polymerization conditions.

[0178] In another embodiment all catalyst components are only introducedinto the first reaction zone and no catalyst components, other thanresidual catalyst components present in the contents of the firstreaction zone, is introduced into the second reaction zone.

[0179] In another embodiment only one catalyst component is present inall the reaction zones. The catalyst component can be introducted intothe first reaction zone only, or introcuced into multiple reactionzones.

[0180] In another embodiment more than two catalyst components arepresent in one or all reaction zones, at least one of the catalystcomponents is capable of producing a polymer having a crystallininty of5% or less, and at least one other of the catalyst components is capableof producing a polymer having a crystallininty of 20% or more at theselected polymerization condtions.

[0181] In another embodiment a diolefin monomer is present in one or allof the reaction zones.

[0182] In another embodiment hydrogen is present in one or all of thereaction zones.

[0183] In a particular embodiment the present invention is directed to apolyolefin polymer produced by copolymerizing one or more C₃ or higheralpha-olefins and/or one or more di-vinyl monomers, and optionally up to5 mol % ethylene, in the presence of at least one stereospecificcatalyst system and at least one other catalyst system. The polymer soproduced may contain amorphous polymer segments and crystalline polymersegments in which at least some of the segments are linked. Typicallythe amorphous and the crystalline polymer segments are copolymers of oneor more alpha-olefins (optionally including up to 5 mol % ethylene)and/or one or more monomers having at least two olefinically unsaturatedbonds. Both of these unsaturated bonds are suitable for and readilyincorporated into a growing polymer chain by coordination polymerizationusing either the first or second catalyst systems independently suchthat the di-olefin is incorporated into polymer segments produced byboth catalysts in the mixed catalyst system according to this invention.In a preferred embodiment these monomers having at least twoolefinically unsaturated bonds are di-olefins, preferably di-vinylmonomers. Crosslinking of at least a portion of the mixture of polymersegments is believed to be accomplished during the polymerization of thecomposition by incorporation of a portion of di-vinyl comonomers intotwo polymer segments, thus producing a crosslink between those segments.

[0184] In another embodiment, polyolefin branch-block compositionscontaining amorphous and semi-crystalline components may be prepared intwo or more reactors to yield desired property balance. In particular,aPP-g-scPP branch structures may be produced in-situ in two or morecontinuous solution reactors using mixed catalysts and propylene as thepreferred feed. In one embodiment stereospecific bridged bis-indenylgroup 4 catalysts can be selected to produce semicrystalline PPmacromonomers. (All references to the Periodic Table of the Elements areto the Table published in Chemical and Engineering News, 63(5), 27,1985.) A bridged mono-cyclopentadienyl heteroatom group 4 catalyst canbe used to build amorphous PP (aPP) backbone while simultaneouslyincorporating some of the semi-crystalline macromonomers (scPP). This isbelieved to produce a aPP-g-scPP structure where the “-g-” indicatesthat the polymer types are at least partially grafted. By selecting thecatalysts, the polymerization reaction conditions, and/or by introducinga diene modifier, the amorphous and crystalline components can be linkedtogether to produce various branch-block structures. To effectivelyincorporate into a growing chain, a macromonomer with vinyl end group ispreferred. Other types of chain end unsaturations (vinylene andvinylidene) can also be used. While not wishing to be bound by theory,branch-block copolymer is believed to comprise an amorphous backbonehaving crystalline side chains originating from the scPP macromonomersand the sidechains are believed to be polypropylene macromonomers, whichcan be prepared under solution polymerization conditions with catalystssuitable for preparing either of isotactic or syndiotacticpolypropylene.

[0185] A preferred reaction process to produce polypropylenemacromonomers having high levels of terminal vinyl unsaturation isdescribed in U.S. Pat. No. 6,117,962. Typically used catalysts arestereorigid, chiral or asymmetric, bridged metallocenes. See, forexample, U.S. Pat. No. 4,892,851, U.S. Pat. No. 5,017,714, U.S. Pat. No.5,132,281, U.S. Pat. No. 5,296,434, U.S. Pat. No. 5,278,264, U.S. Pat.No. 5,304,614, U.S. Pat. No. 5,510,502, WO-A-(PCT/US92/10066)WO-A-93/19103, EP-A2-0 577 581, EP-A1-0 578 838, and academic literature“The Influence of Aromatic Substituents on the Polymerization Behaviorof Bridged Zirconocene Catalysts”, Spaleck, W., el al, Organometallics1994, 13, 954-963, and “ansa-Zirconocene Polymerization Catalysts withAnnelated Ring Ligands-Effects on Catalytic Activity and Polymer ChainLengths”, Brinzinger, H., et al, Organometallics 1994, 13, 964-970, anddocuments referred to therein.

[0186] In some embodiments, the first catalyst which comprises astereorigid transition metal pre-catalyst compound used to produce thesemi-crystalline polypropylene macromonomers of the present invention isselected from the group consisting of racemic bridged bis(indenyl)zirconocenes or hafnocenes. In a another embodiment, the transitionmetal pre-catalyst compound is a rac-dimethylsilyl-bridged bis(indenyl)zirconocene or hafnocene. In another embodiment, the transition metalpre-catalyst compound is rac-dimethylsilylbis(2-methyl-4-phenylindenyl)zirconium or haffium dichloride ordimethyl. In another preferred embodiment, the transition metal catalystis a rac-dimethylsilyl-bridged bis(indenyl)hafnocene such asrac-dimethylsilyl bis(indenyl)hafnium dimethyl or dichloride.

[0187] It is believed that the fraction of branch-block and the level ofbranching depend on the availability of macromonomers with unsaturatedchain end and macromonomer incorporation capability of the specificcatalyst. To increase the population of aPP-g-scPP branch-blockcomposition, one typically operates within a process window that favorsmacromonomer production and insertion. Such conditions have beendescribed in U.S. Pat. No. 6,117,962 and the journal article by W. Wenget. al, Macromol. Rapid Commun., 2000, 21, 1103-1107 and are furtherillustrated by the examples therein.

[0188] It is also believed that the higher the population of vinylterminated scPP macromonomers the higher the probability of getting themincorporated into aPP backbone and therefore the higher the branch-blockpopulation.

[0189] To further increase the population of macromonomers having vinylchain ends diolefin monomers can be introduced into the reaction medium.The resultant product is typically a blend comprised of isotacticpolypropylene segments, atactic polypropylene segments, and increasedpopulation of branch-block species resulting from the additionalcouplings brought about by the diolefin crosslinking agent.

[0190] Crosslinking typically refers to the connection of two polymersegments by incorporation of each double bond of a diolefin monomer intotwo different polymer segments. The polymer segments so connected can bethe same or different, with respect to their crystallinity. Three ormore polymer segments may also be connected via incorporation of two ormore diolefins in on polymer segment into two other polymer segments.

[0191] A consideration for selection of the monomer, or combinations ofmonomers, is that, both crystalline and amorphous polymer segments canbe formed with the selection of two or more different catalyst systems.In some embodiments it is further desired that the level ofincorporation of the diolefin monomer, if present, into the crystallinesegments be limited to an amount that will not substantially alter itscrystallinity. The diolefin coupling agent is typically kept minimum toinsure the overall composition has a viscosity of 8000 mPa.s or less forsome adhesive applications.

[0192] As mentioned above, to increase the population of aPP-g-scPPbranch-block composition, one typically operates within a process windowthat favors macromonomer production and insertion. Favorablve conditionsinclude:

[0193] 1. High concentration of catalyst producing the semi-crystallinevinyl terminated macromonomers, and or

[0194] 2. Adjusting the Al/metal ratio; and or

[0195] 3. High operating temperature; and or

[0196] 4. Catalyst structure that has a high affility for macromonomerincorporation; and or

[0197] 5. Relatively long residence time; and or

[0198] 6. High monomer conversion (monomer starvation condition enhancesthe insertion of macromonomer); and or

[0199] 7. Addition of modifier (diene) to enhance the population ofvinyl terminated macromonomers.

[0200] Another method of enhancing aPP-g-scPP branch block compositionsis to add in a chain transfer agent that transfers a vinyl group to theend of the polymer chain while deactivating the catalyst. Such chaintransfer agents include, but are not limited to, vinyl chloride, vinylfluoride, vinyl bromide. In the process, the catalyst is reactivated bythe presence of an aluminum alkyl activator such as an alumoxane(typically methylalumoxane).

[0201] Similarly, melting and crystallization characteristics can becontrolled through catalyst selection, comonomer addition and changes inprocess conditions such as temperature and catalyst ratio if more thanone catalyst is used.

[0202] Catalyst Compounds

[0203] Any catalyst compound that can produce the desired polymerspecies (i.e. a polymer having an Mw of 100,000 or less and a heat offusion of 70 J/g or less, or a polymer having an Mw of 100,000 or lessand a crystallinity of 20% or more) may be used in the practice of thisinvention. In the description herein the transition metal compound maybe described as a catalyst precursor, a pre-catalyst compound or acatalyst compound, and these terms are used interchangeably. A catalystsystem is combination of a catalyst precursor and an activator.

[0204] Catalyst Compounds and Selection

[0205] Any pre-catalyst compound (catalyst precursor compound) that canproduce the desired polymer species (i.e. a polymer having an Mw of100,000 or less and crystallinity of 5% or less, or a polymer having anMw of 100,000 or less and a crystallinity of 20% or more) may be used inthe practice of this invention. Pre-catalyst compounds which may beutilized in the process of the invention include metallocene transitionmetal compounds (containing one, two, or three cyclopentadienyl ligandsper metal atom), non-metallocene early transition metal compounds(including those with amide and/or phenoxide type ligands),non-metallocene late transition metal compounds (including those withdiimine or diiminepyridyl ligands), and other transition metalcompounds.

[0206] Generally, bulky ligand metallocene compounds (pre-catalysts)useful in this invention include half and full sandwich compounds havingone or more bulky ligands bonded to at least one metal atom. Typicalbulky ligand metallocene compounds are generally described as containingone or more bulky ligand(s) and one or more leaving group(s) bonded toat least one metal atom. The bulky ligands are generally represented byone or more open, acyclic, or fused ring(s) or ring system(s) or acombination thereof. These bulky ligands, preferably the ring(s) or ringsystem(s) are typically composed of atoms selected from Groups 13 to 16atoms of the Periodic Table of Elements, preferably the atoms areselected from the group consisting of carbon, nitrogen, oxygen, silicon,sulfur, phosphorous, germanium, boron and aluminum or a combinationthereof. Most preferably, the ring(s) or ring system(s) are composed ofcarbon atoms such as but not limited to those cyclopentadienyl ligandsor cyclopentadienyl-type ligand structures or other similar functioningligand structure such as a pentadienyl, a cyclooctatetraendiyl, acyclobutadienyl, or a substituted allyl ligand. Other ligands that canfunction similarly to a cyclopentadienyl-type ligand include amides,phosphides, imines, phosphinimines, amidinates, and ortho-substitutedphenoxides. The metal atom is preferably selected from Groups 3 through15 and or lanthanide or actinide series of the Periodic Table ofElements. Preferably the metal is a transition metal from Groups 3through 12, more preferably Groups 4, 5 and 6, and most preferably thetransition metal is from Group 4.

[0207] In one embodiment, the catalyst composition useful in theinvention includes one or more bulky ligand metallocene catalystcompounds represented by the formula:

L^(A)L^(B)MQ*_(n)   (1)

[0208] where M is a metal atom from the Periodic Table of the Elementsand may be a Group 3 to 12 metal or from the lanthanide or actinideseries of the Periodic Table of Elements, preferably M is a Group 4, 5or 6 transition metal, more preferably M is a Group 4 transition metal,even more preferably M is zirconium, hafnium or titanium. The bulkyligands, L^(A) and L^(B), are open, acyclic or fused ring(s) or ringsystem(s) and are any ancillary ligand system, including unsubstitutedor substituted, cyclopentadienyl ligands or cyclopentadienyl-typeligands, heteroatom substituted and/or heteroatom containingcyclopentadienyl-type ligands. Non-limiting examples of bulky ligandsinclude cyclopentadienyl ligands, cyclopentaphenanthreneyl ligands,indenyl ligands, benzindenyl ligands, fluorenyl ligands,dibenzo[b,h]fluorenyl ligands, benzo[b]fluorenyl ligands,cyclooctatetraendiyl ligands, cyclopentacyclododecene ligands, azenylligands, azulene ligands, pentalene ligands, phosphoyl ligands,phosphinimine (WO 99/40125), pyrrolyl ligands, pyrozolyl ligands,carbazolyl ligands, boratobenzene ligands and the like, includinghydrogenated versions thereof, for example tetrahydroindenyl ligands. Inone embodiment, L^(A) and L^(B) may be any other ligand structurecapable of π-bonding to M. In yet another embodiment, the atomicmolecular weight (MW) of L^(A) or L^(B) exceeds 60 a.m.u., preferablygreater than 65 a.m.u. In another embodiment, L^(A) and L^(B) maycomprise one or more heteroatoms, for example, nitrogen, silicon, boron,germanium, sulfur and phosphorous, in combination with carbon atoms toform an open, acyclic, or preferably a fused, ring or ring system, forexample, a hetero-cyclopentadienyl ancillary ligand. Other L^(A) andL^(B) bulky ligands include but are not limited to bulky amides,phosphides, alkoxides, aryloxides, imides, carbolides, borollides,porphyrins, phthalocyanines, corrins and other polyazomacrocycles.Independently, each L^(A) and L^(B) may be the same or different type ofbulky ligand that is bonded to M. In one embodiment of Formula 1 onlyone of either L^(A) or L^(B) is present.

[0209] Independently, each L^(A) and L^(B) may be unsubstituted orsubstituted with a combination of substituent groups R*. Non-limitingexamples of substituent groups R* include one or more from the groupselected from hydrogen, or linear or branched alkyl radicals, alkenylradicals, alkynyl radicals, cycloalkyl radicals, aryl radicals, acylradicals, aroyl radicals, alkoxy radicals, aryloxy radicals, alkylthioradicals, dialkylamino radicals, alkoxycarbonyl radicals,aryloxycarbonyl radicals, carbomoyl radicals, alkyl- or dialkyl-carbamoyl radicals, acyloxy radicals, acylamino radicals, aroylaminoradicals or combination thereof. In a preferred embodiment, substituentgroups R* have up to 50 non-hydrogen atoms, preferably from 1 to 30carbon, that can also be substituted with halogens or heteroatoms or thelike. Non-limiting examples of alkyl substituents R* include methyl,ethyl, propyl, butyl, pentyl, hexyl, cyclopentyl, cyclohexyl, benzyl orphenyl groups and the like, including all their isomers, for exampletertiary butyl, isopropyl, and the like. Other hydrocarbyl radicalsinclude fluoromethyl, fluoroethyl, difluoroethyl, iodopropyl,bromohexyl, chlorobenzyl and hydrocarbyl substituted organometalloidradicals including trimethylsilyl, trimethylgermyl, methyldiethylsilyland the like; and halocarbyl-substituted organometalloid radicalsincluding tris(trifluoromethyl)silyl, methyl-bis(difluoromethyl)silyl,bromomethyldimethylgermyl and the like; and disubstituted boron radicalsincluding dimethylboron for example; and disubstituted pnictogenradicals including dimethylamine, dimethylphosphine, diphenylamine,methylphenylphosphine, chalcogen radicals including methoxy, ethoxy,propoxy, phenoxy, methylsulfide and ethylsulfide. Non-hydrogensubstituents R* include the atoms carbon, silicon, boron, aluminum,nitrogen, phosphorous, oxygen, tin, sulfur, germanium and the like,including olefins such as but not limited to olefinically unsaturatedsubstituents including vinyl-terminated ligands, for example but-3-enyl,prop-2-enyl, hex-5-enyl and the like. Also, at least two R* groups,preferably two adjacent R groups, are joined to form a ring structurehaving from 3 to 30 atoms selected from carbon, nitrogen, oxygen,phosphorous, silicon, germanium, aluminum, boron or a combinationthereof. Also, a substituent group, R*, may also be a diradical bondedto L at one end and forming a carbon sigma bond to the metal M. Otherligands may be bonded to the metal M, such as at least one leaving groupQ*. In one embodiment, Q* is a monoanionic labile ligand having asigma-bond to M. Depending on the oxidation state of the metal, thevalue for n is 0, 1 or 2 such that Formula 1 above represents a neutralbulky ligand metallocene catalyst compound. Non-limiting examples of Q*ligands include weak bases such as amines, phosphines, ethers,carboxylates, dienes, hydrocarbyl radicals having from 1 to 20 carbonatoms, hydrides or halogens and the like or a combination thereof. Inanother embodiment, two or more Q*'s form a part of a fused ring or ringsystem. Other examples of Q* ligands include those substituents for R*as described above and including cyclobutyl, cyclohexyl, heptyl, tolyl,trifluoromethyl, tetramethylene (both Q*), pentamethylene (both Q*),methylidene (both Q*), methoxy, ethoxy, propoxy, phenoxy,bis(N-methylanilide), dimethylamide, dimethylphosphide radicals and thelike.

[0210] In another embodiment, the catalyst composition useful in theinvention may include one or more bulky ligand metallocene catalystcompounds where L^(A) and L^(B) of Formula 1 are bridged to each otherby at least one bridging group, A*, as represented by Formula 2.

L^(A)A*L^(B)MQ*_(n)   (2)

[0211] The compounds of Formula 2 are known as bridged, bulky ligandmetallocene catalyst compounds. L^(A), L^(B), M, Q* and n are as definedabove. Non-limiting examples of bridging group A* include bridginggroups containing at least one Group 13 to 16 atom, often referred to asa divalent moiety such as but not limited to at least one of a carbon,oxygen, nitrogen, silicon, aluminum, boron, germanium and tin atom or acombination thereof. Preferably bridging group A* contains a carbon,silicon or germanium atom, most preferably A* contains at least onesilicon atom or at least one carbon atom. The bridging group A* may alsocontain substituent groups R* as defined above including halogens andiron. Non-limiting examples of bridging group A* may be represented byR′₂C, R′₂CCR′₂, R′₂Si, R′₂SiCR′₂, R′₂SiSiR′₂R′₂Ge, R′P, R′N, R′B whereR′ is independently, a radical group which is hydride, hydrocarbyl,substituted hydrocarbyl, halocarbyl, substituted halocarbyl,hydrocarbyl-substituted organometalloid, halocarbyl-substitutedorganometalloid, disubstituted boron, disubstituted pnictogen,substituted chalcogen, or halogen or two or more R′ may be joined toform a ring or ring system. In one embodiment, the bridged, bulky ligandmetallocene catalyst compounds of Formula 2 have two or more bridginggroups A* (EP 664 301 B1).

[0212] In another embodiment, the bulky ligand metallocene catalystcompounds are those where the R* substituents on the bulky ligands L^(A)and L^(B) of Formulas 1 and 2 are substituted with the same or differentnumber of substituents on each of the bulky ligands. In anotherembodiment, the bulky ligands L^(A) and L^(B) of Formulas 1 and 2 aredifferent from each other.

[0213] Other bulky ligand metallocene catalyst compounds and catalystsystems useful in the invention may include those described in U.S. Pat.Nos. 5,064,802, 5,145,819, 5,149,819, 5,243,001, 5,239,022, 5,276,208,5,296,434, 5,321,106, 5,329,031, 5,304,614, 5,677,401, 5,723,398,5,753,578, 5,854,363, 5,856,547 5,858,903, 5,859,158, 5,900,517 and5,939,503 and PCT publications WO 93/08221, WO 93/08199, WO 95/07140, WO98/11144, WO 98/41530, WO 98/41529, WO 98/46650, WO 99/02540 and WO99/14221 and European publications EP-A-0 578 838, EP-A-0 638 595,EP-B-0 513 380, EP-A1-0 816 372, EP-A2-0 839 834, EP-B1-0 632 819,EP-B1-0 748 821 and EP-B1-0 757 996, all of which are herein fullyincorporated by reference.

[0214] In another embodiment, the catalyst compositions useful in theinvention may include bridged heteroatom, mono-bulky ligand metallocenecompounds. These types of catalysts and catalyst systems are describedin, for example, PCT publication WO 92/00333, WO 94/07928, WO 91/04257,WO 94/03506, W096/00244, WO 97/15602 and WO 99/20637 and U.S. Pat. Nos.5,057,475, 5,096,867, 5,055,438, 5,198,401, 5,227,440 and 5,264,405 andEuropean publication EP-A-0 420 436, all of which are herein fullyincorporated by reference.

[0215] In another embodiment, the catalyst composition useful in theinvention includes one or more bulky ligand metallocene catalystcompounds represented by Formula 3:

L^(C)A*J*MQ*_(n)   (3)

[0216] where M is a Group 3 to 16 metal atom or a metal selected fromthe Group of actinides and lanthanides of the Periodic Table ofElements, preferably M is a Group 3 to 12 transition metal, and morepreferably M is a Group 4, 5 or 6 transition metal, and most preferablyM is a Group 4 transition metal in any oxidation state, and isespecially titanium; L^(C) is a substituted or unsubstituted bulkyligand bonded to M; J* is bonded to M; A* is bonded to J* and L^(C); J*is a heteroatom ancillary ligand; and A* is a bridging group; Q* is aunivalent anionic ligand; and n is the integer 0, 1 or 2. In Formula 3above, L^(C), A* and J* form a fused ring system. In an embodiment,L^(C) of Formula 3 is as defined above for L^(A). A*, M and Q* ofFormula 3 are as defined above in Formula 1. In Formula 3, J* is aheteroatom containing ligand in which J* is an element with acoordination number of three from Group 15 or an element with acoordination number of two from Group 16 of the Periodic Table ofElements. Preferably J* contains a nitrogen, phosphorus, oxygen orsulfur atom with nitrogen being most preferred. In an embodiment of theinvention, the bulky ligand metallocene catalyst compounds areheterocyclic ligand complexes where the bulky ligands, the ring(s) orring system(s), include one or more heteroatoms or a combinationthereof. Non-limiting examples of heteroatoms include a Group 13 to 16element, preferably nitrogen, boron, sulfur, oxygen, aluminum, silicon,phosphorous and tin. Examples of these bulky ligand metallocene catalystcompounds are described in WO 96/33202, WO 96/34021, WO 97/17379 and WO98/22486 and EP-A1-0 874 005 and U.S. Pat. Nos. 5,637,660, 5,539,124,5,554,775, 5,756,611, 5,233,049, 5,744,417, and 5,856,258 all of whichare herein incorporated by reference.

[0217] In one embodiment, the bulky ligand metallocene compounds(pre-catalysts) are those complexes based on bidentate ligandscontaining pyridine or quinoline moieties, such as those described inU.S. application Ser. No. 09/103,620 filed Jun. 23, 1998, which isherein incorporated by reference. In another embodiment, the bulkyligand metallocene catalyst compounds are those described in PCTpublications WO 99/01481 and WO 98/42664, which are fully incorporatedherein by reference.

[0218] In another embodiment, the bulky ligand metallocene catalystcompound is a complex of a metal, preferably a transition metal, a bulkyligand, preferably a substituted or unsubstituted pi-bonded ligand, andone or more heteroallyl moieties, such as those described in U.S. Pat.Nos. 5,527,752 and 5,747,406 and EP-B1-0 735 057, all of which areherein fully incorporated by reference.

[0219] In another embodiment, the bulky ligand metallocene catalystcompounds are those described in PCT publications WO 99/01481 and WO98/42664, which are fully incorporated herein by reference.

[0220] Useful Group 6 bulky ligand metallocene catalyst systems aredescribed in U.S. Pat. No. 5,942,462, which is incorporated herein byreference.

[0221] Still other useful catalysts include those multinuclearmetallocene catalysts as described in WO 99/20665 and U.S. Pat. No.6,010,794, and transition metal metaaracyle structures described in EP 0969 101 A2, which are herein incorporated herein by reference. Othermetallocene catalysts include those described in EP 0 950 667 Al, doublecross-linked metallocene catalysts (EP 0 970 074 A1), tetheredmetallocenes (EP 970 963 A2) and those sulfonyl catalysts described inU.S. Pat. No. 6,008,394, which are incorporated herein by reference.

[0222] It is also contemplated that in one embodiment the bulky ligandmetallocene catalysts, described above, include their structural oroptical or enantiomeric isomers (meso and racemic isomers, for examplesee U.S. Pat. No. 5,852,143, incorporated herein by reference) andmixtures thereof.

[0223] It is further contemplated that any one of the bulky ligandmetallocene catalyst compounds, described above, have at least onefluoride or fluorine containing leaving group as described in U.S.application Ser. No. 09/191,916 filed Nov. 13, 1998.

[0224] The Group 15 containing metal compounds utilized in the catalystcomposition of the invention are prepared by methods known in the art,such as those disclosed in EP 0 893 454 A1, U.S. Pat. No. 5,889,128 andthe references cited in U.S. Pat. No. 5,889,128 which are all hereinincorporated by reference. U.S. application Ser. No. 09/312,878, filedMay 17, 1999, discloses a gas or slurry phase polymerization processusing a supported bisamide catalyst, which is also incorporated hereinby reference. For additional information of Group 15 containing metalcompounds, please see Mitsui Chemicals, Inc. in EP 0 893 454 Al whichdiscloses transition metal amides combined with activators to polymerizeolefins.

[0225] In one embodiment the Group 15 containing metal compound isallowed to age prior to use as a polymerization. It has been noted on atleast one occasion that one such catalyst compound (aged at least 48hours) performed better than a newly prepared catalyst compound.

[0226] It is further contemplated that bis-amide based pre-catalysts maybe used. Exemplary compounds include those described in the patentliterature. International patent publications WO 96/23010, WO 97/48735and Gibson, et al., Chem. Comm., pp. 849-850 (1998), which disclosediimine-based ligands for Group-8-10 compounds that undergo ionicactivation and polymerize olefins. Polymerization catalyst systems fromGroup-5-10 metals, in which the active center is highly oxidized andstabilized by low-coordination-number, polyanionic, ligand systems, aredescribed in U.S. Pat. No. 5,502,124 and its divisional U.S. Pat. No.5,504,049. See also the Group-5 organometallic catalyst compounds ofU.S. Pat. No. 5,851,945 and the tridentate-ligand-containing,Group-5-10, organometallic catalysts of U.S. Pat. No. 6,294,495.Group-11 catalyst precursor compounds, activatable with ionizingcocatalysts, useful for olefin and vinylic polar molecules are describedin WO 99/30822.

[0227] Other useful catalyst compounds are those Group 5 and 6 metalimido complexes described in EP-A2-0 816 384 and U.S. Pat. No.5,851,945, which is incorporated herein by reference. In addition,metallocene catalysts include bridged bis(arylamido) Group 4 compoundsdescribed by D. H. McConville, et al., in Organometallics 1995, 14,5478-5480, which is herein incorporated by reference. In addition,bridged bis(amido) catalyst compounds are described in WO 96/27439,which is herein incorporated by reference. Other useful catalysts aredescribed as bis(hydroxy aromatic nitrogen ligands) in U.S. Pat. No.5,852,146, which is incorporated herein by reference. Other usefulcatalysts containing one or more Group 15 atoms include those describedin WO 98/46651, which is herein incorporated herein by reference.

[0228] U.S. Pat. No. 5,318,935 describes bridged and unbridged, bisamidocatalyst compounds of Group-4 metals capable of α-olefinspolymerization. Bridged bi(arylamido)-Group-4 compounds for olefinpolymerization are described by D. H. McConville, et al., inOrganometallics 1995, 14, 5478-5480. This reference presents syntheticmethods and compound characterizations. Further work appearing in D. H.McConville, et al, Macromolecules 1996, 29, 5241-5243, describes bridgedbis(arylamido)-Group-4 compounds that are polymerization catalysts for1-hexene. Additional invention-suitable transition metal compoundsinclude those described in WO 96/40805. Cationic Group-3- orLanthanide-metal olefin polymerization complexes are disclosed incopending U.S. application Ser. No. 09/408,050, filed 29 Sep. 1999. Amonoanionic bidentate ligand and two monoanionic ligands stabilize thosecatalyst precursors, which can be activated with this invention's ioniccocatalysts.

[0229] The literature describes many additional suitablecatalyst-precursor compounds. Compounds that contain abstractableligands or that can be alkylated to contain abstractable ligands suitthis invention. See, for instance, V. C. Gibson, et al; “The Search forNew-Generation Olefin Polymerization Catalysts: Life BeyondMetallocenes”, Angew. Chem. Int. Ed., 38, 428-447 (1999).

[0230] This invention may also be practiced with the catalystscontaining phenoxide ligands such as those disclosed in EP 0 874 005 A1,which in incorporated by reference herein.

[0231] In another embodiment, conventional-type transition metalcatalysts may be used in the practice of this invention.Conventional-type transition metal catalysts are those traditionalZiegler-Natta, vanadium and Phillips-type catalysts well known in theart. Such as, for example Ziegler-Natta catalysts as described inZiegler-Natta Catalysts and Polymerizations, John Boor, Academic Press,New York, 1979. Examples of conventional-type transition metal catalystsare also discussed in U.S. Pat. Nos. 4,115,639, 4,077,904, 4,482,687,4,564,605, 4,721,763, 4,879,359 and 4,960,741, all of which are hereinfully incorporated by reference. The conventional-type transition metalcatalyst compounds that may be used in the present invention includetransition metal compounds from Groups 3 to 17, preferably 4 to 12, morepreferably 4 to 6 of the Periodic Table of Elements.

[0232] Preferred conventional-type transition metal catalysts may berepresented by the formula: MR_(x), where M is a metal from Groups 3 to17, preferably Group 4 to 6, more preferably Group 4, most preferablytitanium; R is a halogen or a hydrocarbyloxy group; and x is theoxidation state of the metal M. Non-limiting examples of R includealkoxy, phenoxy, bromide, chloride and fluoride. Non-limiting examplesof conventional-type transition metal catalysts where M is titaniuminclude TiCl₄, TiBr₄, Ti(OC₂H₅)₃Cl, Ti(OC₂H₅)Cl₃, Ti(OC₄H₉)₃Cl,Ti(OC₃H₇)₂Cl₂, Ti(OC₂H₅)₂Br₂, TiCl₃.⅓AlCl₃ and Ti(OC₁₂H₂₅)Cl₃.Conventional-type transition metal catalyst compounds based onmagnesium/titanium electron-donor complexes that are useful in theinvention are described in, for example, U.S. Pat. Nos. 4,302,565 and4,302,566, which are herein fully incorporate by reference. The MgTiCl₆(ethyl acetate)₄ derivative is particularly preferred.

[0233] British Patent Application 2,105,355 and U.S. Pat. No. 5,317,036,herein incorporated by reference, describes various conventional-typevanadium catalyst compounds. Non-limiting examples of conventional-typevanadium catalyst compounds include vanadyl trihalide, alkoxy halidesand alkoxides such as VOCl₃, VOCl₂(OBu) where Bu=butyl and VO(OC₂H₅)₃;vanadium tetra-halide and vanadium alkoxy halides such as VCl₄ andVCl₃(OBu); vanadium and vanadyl acetyl acetonates and chloroacetylacetonates such as V(AcAc)₃ and VOCl₂(AcAc) where (AcAc) is an acetylacetonate. The preferred conventional-type vanadium catalyst compoundsare VOCl₃, VCl₄ and VOCl₂—OR where R is a hydrocarbon radical,preferably a C₁ to C₁₀ aliphatic or aromatic hydrocarbon radical such asethyl, phenyl, isopropyl, butyl, propyl, n-butyl, iso-butyl,tertiary-butyl, hexyl, cyclohexyl, naphthyl, etc., and vanadium acetylacetonates.

[0234] Conventional-type chromium catalyst compounds, often referred toas Phillips-type catalysts, suitable for use in the present inventioninclude CrO₃, chromocene, silyl chromate, chromyl chloride (CrO₂Cl₂),chromium-2-ethyl-hexanoate, chromium acetylacetonate (Cr(AcAc)₃), andthe like. Non-limiting examples are disclosed in U.S. Pat. Nos.3,709,853, 3,709,954, 3,231,550, 3,242,099 and 4,077,904, which areherein fully incorporated by reference.

[0235] Still other conventional-type transition metal catalyst compoundsand catalyst systems suitable for use in the present invention aredisclosed in U.S. Pat. Nos. 4,124,532, 4,302,565, 4,302,566, 4,376,062,4,379,758, 5,066,737, 5,763,723, 5,849,655, 5,852,144, 5,854,164 and5,869,585 and published EP-A2 0 416 815 A2 and EP-A1 0 420 436, whichare all herein incorporated by reference.

[0236] Other catalysts may include cationic catalysts such as AlCl₃, andother cobalt, iron, nickel and palladium catalysts well known in theart. See for example U.S. Pat. Nos. 3,487,112, 4,472,559, 4,182,814 and4,689,437, all of which are incorporated herein by reference.

[0237] It is also contemplated that other catalysts can be combined withthe catalyst compounds in the catalyst composition useful in theinvention. For example, see U.S. Pat. Nos. 4,937,299, 4,935,474,5,281,679, 5,359,015, 5,470,811, and 5,719,241 all of which are hereinfully incorporated herein reference.

[0238] It is further contemplated that one or more of the catalystcompounds described above or catalyst systems may be used in combinationwith one or more conventional catalyst compounds or catalyst systems.Non-limiting examples of mixed catalysts and catalyst systems aredescribed in U.S. Pat. Nos. 4,159,965, 4,325,837, 4,701,432, 5,124,418,5,077,255, 5,183,867, 5,391,660, 5,395,810, 5,691,264, 5,723,399 and5,767,031 and PCT Publication WO 96/23010 published Aug. 1, 1996, all ofwhich are herein fully incorporated by reference.

[0239] Preferred metallocene catalysts used in this invention can morespecifically be represented by one of the following general formulae(all references to Groups being the new Group notation of the PeriodTable of the Elements as described by Chemical and Engineering News,63(5), 27, 1985):

[{[(A-Cp)MX₁]⁺}_(d)]{[B′]^(d−)}  (4)

[{[(A-Cp)MX₁L]⁺}_(d)]{[B′]^(d−)}  (5)

[0240] wherein:

[0241] (A-Cp) is either (Cp), (Cp*) or Cp-A′-Cp*; Cp and Cp* are thesame or different cyclopentadienyl rings substituted with from zero tofive substituent groups S″, each substituent group S″ being,independently, a radical group which is a hydrocarbyl,substituted-hydrocarbyl, halocarbyl, substituted-halocarbyl,hydrocarbyl-substituted organometalloid, halocarbyl-substitutedorganometalloid, disubstituted boron, disubstituted pnictogen,substituted chalcogen or halogen radicals, or Cp and Cp* arecyclopentadienyl rings in which any two adjacent S″ groups are joinedforming a C₄ to C₂₀ ring to give a saturated or unsaturated polycycliccyclopentadienyl ligand; Cp and Cp* may also have one or two carbonatoms within the ring replaced by a Group 15 or 16 element especially,S, O, N or P;

[0242] A′ is a bridging group;

[0243] (C₅H_(5-y-x)S″_(x)) is a cyclopentadienyl ring substituted withfrom zero to five S″ radicals as defined above;

[0244] x is from 0 to 5 denoting the degree of substitution;

[0245] M is titanium, zirconium or hafnium;

[0246] X₁ is a hydride radical, hydrocarbyl radical,substituted-hydrocarbyl radical, hydrocarbyl-substituted organometalloidradical or halocarbyl-substituted organometalloid radical which radicalmay optionally be covalently bonded to both or either M and L or L′ orall or any M, S″ or S′, and provided that X₁ is not a substituted orunsubstituted cyclopentadienyl ring;

[0247] (JS′_(z-l-y)) is a heteroatom ligand in which J is an elementfrom Group 15 of the Periodic Table of Elements with a coordinationnumber of 3 or an element from Group 16 with a coordination number of 2;S′ is a radical group which is a hydrocarbyl, substituted hydrocarbyl,halocarbyl, substituted halocarbyl, hydrocarbyl-substitutedorganometalloid, or halocarbyl-substituted organometalloid; and z is thecoordination number of the element J;

[0248] y is 0 or 1;

[0249] L is an olefin, diolefin or aryne ligand. L′ is the same as L,and can additionally be an amine, phosphine, ether, or sulfide ligand,or any other neutral Lewis base; L′ can also be a second transitionmetal compound of the same type such that the two metal center M and M*are bridged by X₁ and X′₁, wherein M* has the same meaning as M, X′₁, X₂and X′₂ have the same meaning as X₁, where such dimeric compounds whichare precursors to the cationic portion of the catalyst are representedby the formula:

[0250] wherein

[0251] w is an integer from 0 to 3;

[0252] B′ is a chemically stable, non-nucleophilic anionic complexhaving a molecular diameter about or greater than 4 Angstroms or ananionic Lewis-acid activator resulting from the reaction of a Lewis-acidactivator with the precursor to the cationic portion of the catalystsystem described in formulae 1-4. When B′ is a Lewis-acid activator, X₁can also be an alkyl group donated by the Lewis-acid activator; and

[0253] d is an integer representing the charge of B′.

[0254] The catalysts are preferably prepared by combining at least twocomponents. In one preferred method, the first component is acyclopentadienyl derivative of a Group 4 metal compound containing atleast one ligand which will combine with the second component or atleast a portion thereof such as a cation portion thereof. The secondcomponent is an ion-exchange compound comprising a cation which willirreversibly react with at least one ligand contained in said Group 4metal compound (first component) and a non-coordinating anion which iseither a single coordination complex comprising a plurality oflipophilic radicals covalently coordinated to and shielding a centralformally charge-bearing metal or metalloid atom or an anion comprising aplurality of boron atoms such as polyhedral boranes, carboranes andmetallacarboranes.

[0255] In general, suitable anions for the second component may be anystable and bulky anionic complex having the following molecularattributes: 1) the anion should have a molecular diameter greater than 4Angstroms; 2) the anion should form stable ammonium salts; 3) thenegative charge on the anion should be delocalized over the framework ofthe anion or be localized within the core of the anion; 4) the anionshould be a relatively poor nucleophile; and 5) the anion should not bea powerful reducing or oxidizing agent. Anions meeting thesecriteria—such as polynuclear boranes, carboranes, metallacarboranes,polyoxoanions and anionic coordination complexes are well described inthe chemical literature.

[0256] The cation portion of the second component may comprise Bronstedacids such as protons or protonated Lewis bases or may comprise Lewisacids such as ferricinum, tropylium, triphenylcarbenium or silvercations.

[0257] In another preferred method, the second component is a Lewis-acidcomplex which will react with at least one ligand of the firstcomponent, thereby forming an ionic species described in formulae 4-6with the ligand abstracted from the first component now bound to thesecond component. Alumoxanes and especially methylalumoxane, the productformed from the reaction of trimethylaluminum in an aliphatic oraromatic hydrocarbon with stoichiometric quantities of water, areparticularly preferred Lewis-acid second components. Modified alumoxanesare also preferred. Alumoxanes are well known in the art and methods fortheir preparation are illustrated by U.S. Pat. Nos. 4,542,199;4,544,762; 5,015,749; and 5,041,585. A technique for preparing modifiedalumoxanes has been disclosed in U.S. Pat. No. 5,041,584, in EPA 0 516476, and in EPA 0 561 476, which are incorporated by reference herein.

[0258] Upon combination of the first and second components, the secondcomponent reacts with one of the ligands of the first component, therebygenerating an anion pair consisting of a Group 4 metal cation and theaforementioned anion, which anion is compatible with andnon-coordinating towards the Group 4 metal cation formed from the firstcomponent. The anion of the second compound must be capable ofstabilizing the Group 4 metal cation's ability to function as a catalystand must be sufficiently labile to permit displacement by an olefin,diolefin or an acetylenically unsaturated monomer during polymerization.The catalysts of this invention may be supported. U.S. Pat. No. 4,808,561, issued Feb. 28, 1989; U.S. Pat. No. 4,897,455 issued Jan. 3, 1990;U.S. Pat. No. 5,057,475 issued Oct. 15, 1991; U.S. patent applicationSer. No. 459,921 (published as PCT International publication WO91/09882), Canadian Patent 1,268,753, U.S. Pat. No. 5,240,894 and WO 9403506 disclose such supported catalysts and the methods to produce suchand are herein incorporated by reference.

[0259] The Group 4 metal compounds; i.e., titanium, zirconium andhafnium metallocene compounds, useful as first compounds (pre-catalysts)in the preparation of the preferred metallocene catalysts of thisinvention are cyclopentadienyl derivatives of titanium, zirconium andhafnium. In general, useful titanocenes, zirconocenes and hafnocenes maybe represented by the following general formulae:

(A-Cp)MX₁X₂   (8)

(A-Cp)ML   (9)

[0260] wherein:

[0261] (A-Cp) is either (Cp)(Cp*) or Cp-A′-Cp*; Cp and Cp* are the sameor different cyclopentadienyl rings substituted with from zero to fivesubstituent groups S″, each substituent group S″ being, independently, aradical group which is a hydrocarbyl, substituted-hydrocarbyl,halocarbyl, substituted-halocarbyl, hydrocarbyl-substitutedorganometalloid, halocarbyl-substituted organometalloid, disubstitutedboron, disubstituted pnictogen, substituted chalcogen or halogenradicals, or Cp and Cp* are cyclopentadienyl rings in which any twoadjacent S″ groups are joined forming a C₄ to C₂₀ ring to give asaturated or unsaturated polycyclic cyclopentadienyl ligand;

[0262] A′ is a bridging group;

[0263] y is 0 or 1;

[0264] (C₅H_(5-y-x)S″_(x)) is a cyclopentadienyl ring substituted withfrom zero to five S″ radicals as defined above;

[0265] x is from 0 to 5 denoting the degree of substitution;

[0266] (JS′_(z-l-y)) is a heteroatom ligand in which J is an elementfrom Group 15 of the Periodic Table of Elements with a coordinationnumber of 3 or an element from Group 16 with a coordination number of 2,S′ is a radical group which is a hydrocarbyl, substituted hydrocarbyl,halocarbyl, substituted halocarbyl, hydrocarbyl-substitutedorganometalloid, or halocarbyl-substituted organometalloid; and z is thecoordination number of the element J;

[0267] L is an olefin, diolefin or aryne ligand. L′ is the same as L andcan additionally be an amine, phosphine, ether, or sulfide ligand, orany other neutral Lewis base; L′ can also be a second transition metalcompound of the same type such that the two metal centers M and M* arebridged by X₁ and X′₁, wherein M* has the same meaning as M, X′₁ has thesame meaning as X₁ and X′₂ has the same meaning as X₂ where such dimericcompounds which are precursors to the cationic portion of the catalystare represented by formula 7 above;

[0268] w is an integer from 0 to 3; and

[0269] X₁ and X₂ are, independently, hydride radicals, hydrocarbylradicals, substituted hydrocarbyl radicals, halocarbyl radicals,substituted halocarbyl radicals, and hydrocarbyl- andhalocarbyl-substituted organometalloid radicals, substituted pnictogenradicals, or substituted chalcogen radicals; or X₁ and X₂ are joined andbound to the metal atom to form a metallacycle ring containing fromabout 3 to about 20 carbon atoms; or X₁ and X₂ together can be anolefin, diolefin or aryne ligand; or when Lewis-acid activators, such asmethylalumoxane, which are capable of donating an X₁ ligand as describedabove to the transition metal component are used, X₁ and X₂ mayindependently be a halogen, alkoxide, aryloxide, amide, phosphide orother univalent anionic ligand or both X₁ and X₂ can also be joined toform a anionic chelating ligand and with the proviso that X₁ and X₂ arenot a substituted or unsubstituted cyclopentadienyl ring.

[0270] Table A depicts representative constituent moieties for themetallocene components of formulae 7-10. The list is for illustrativepurposes only and should not be construed to be limiting in any way. Anumber of final components may be formed by permuting all possiblecombinations of the constituent moieties with each other. Whenhydrocarbyl radicals including alkyl, alkenyl, alkynyl, cycloalkyl,cycloalkenyl, cycloalkynyl and aromatic radicals are disclosed in thisapplication the term includes all isomers. For example, butyl includesn-butyl, 2-methylpropyl, 1-methylpropyl, tert-butyl, and cyclobutyl;pentyl includes n-pentyl, 1-methylbutyl, 2-methylbutyl, 3-methylbutyl,1-ethylpropyl, neopentyl, cyclopentyl and methylcyclobutyl; butenylincludes E and Z forms of 1-butenyl, 2-butenyl, 3-butenyl,1-methyl-1-propenyl, 1-methyl-2-propenyl, 2-methyl-1-propenyl and2-methyl-2-propenyl. This includes when a radical is bonded to anothergroup, for example, propylcyclopentadienyl includen-propylcyclopentadienyl, isopropylcyclopentadienyl andcyclopropylcyclopentadienyl. In general, the ligands or groupsillustrated in Table A include all isomeric forms. For example,dimethylcyclopentadienyl includes 1,2-dimethylcyclopentadienyl and1,3-dimethylcyclopentadienyl; methylindenyl includes 1-methylindenyl,2-methylindenyl, 3-methylindenyl, 4-methylindenyl, 5-methylindenyl,6-methylindenyl and 7-methylindenyl; methylethylphenyl includesortho-methylethylphenyl, meta-methylethylphenyl andpara-methylethylphenyl. Examples of specific invention catalystprecursors take the following formula where some components are listedin Table A. To illustrate members of the transition metal component,select any combination of the species listed in Tables A. Fornomenclature purposes, for the bridging group, A′, the words “silyl” and“silylene” are used interchangeably, and represent a diradical species.For the bridging group A′, “ethylene” refers to a 1,2-ethylene linkageand is distinguished from ethene-1,1-diyl. Thus, for the bridging groupA′, “ethylene” and “1,2-ethylene” are used interchangeably. Forcompounds processing a bridging group, A′, the bridge position on thecyclopentadienyl-type ring is always considered the 1-position. Thus,for example, the use of “1-fluorenyl” is interchangeable with the use of“fluorenyl”

[0271] Illustrative compounds of the formula 8 type are:

[0272] bis(cyclopentadienyl)hafnium dimethyl,ethylenebis(tetrahydroindenyl)zirconium dihidryde,bis(pentamethyl)zirconium diethyl,dimethylsilyl(1-fluorenyl)(cyclopentadienyl)titanium dichloride and thelike. Illustrative compounds of the formula 9 type are:bis(cyclopentadienyl)(1,3-butadiene)zirconium,bis(cyclopentadienyl)(2,3-dimethyl-1,3-butadiene)zirconium,bis(pentamethylcyclopentadienyl)(benzene)zirconium,bis(pentamethylcyclopentadienyl)titanium ethylene and the like.Illustrative compounds of the formula 10 type are:

[0273] dimethylsilyl(tetramethylcyclopentadienyl)(t-butylamido)zirconiumdichloride, ethylene(methylcyclopentadienyl)(phenylamido)titaniumdimethyl, methylphenylsilyl(indenyl)(phenyphosphido)hafnium dihydrideand (pentamethylcyclopentadienyl)(di-t-butylamido)hafnium dimethoxide.

[0274] The conditions under which complexes containing neutral Lewisbase ligands such as ether or those which form dimeric compounds isdetermined by the steric bulk of the ligands about the metal center. Forexample, the t-butyl group in Me₂Si(Me₄C₅)(N-t-Bu)ZrCl₂ has greatersteric requirements that the phenyl in Me₂Si(Me₄C₅)(NPh)ZrCl₂.Et₂Othereby not permitting ether coordination in the former compound in itssolid state. Similarly, due to the decreased steric bulk of thetrimethylsilylcyclopentadienyl group in [Me₂Si(Me₃SiC₅H₃)(N-t-Bu)ZrCl₂]₂versus that of the tetramethylcyclopentadienyl group inMe₂Si(Me₄C₅)(N-t-Bu)ZrCl₂, the former compound is dimeric and the latteris not. TABLE A A′ Dimethylsilylene Diethylsilylene DipropylsilyleneDibutylsilylene dipentylsilylene dihexylsilylene diheptylsilylenedioctylsilylene dinonylsilylene didecylsilylene diundecylsilylenedidodecylsilylene ditridecylsilylene ditetradecylsilylenedipentadecylsilylene dihexadecylsilylene diheptadecylsilylenedioctadecylsilylene dinonadecylsilylene dieicosylsilylenediheneicosylsilylene didocosylsilylene ditricosylsilyleneditetracosylsilylene dipentacosylsilylene dihexacosylsilylenediheptacosylsilylene dioctacosylsilylene dinonacosylsilyleneditriacontylsilylene dicyclohexylsilylene dicyclopentylsilylenedicycloheptylsilylene dicyclooctylsilylene dicyclodecylsilylenedicyclododecylsilylene dinapthylsilylene diphenylsilyleneditolylsilylene dibenzylsilylene diphenethylsilylenedi(butylphenethyl)silylene methylethylsilylene methylpropylsilylenemethylbutylsilylene methylhexylsilylene methylphenylsilyleneethylphenylsilylene ethylpropylsilylene ethylbutylsilylenepropylphenylsilylene dimethylgermylene diethylgermylenediphenylgermylene methylphenylgermylene cyclotetramethylenesilylenecyclopentamethylenesilylene cyclotrimethylenesilylenecyclohexylazanediyl butylazanediyl methylazanediyl phenylazanediylperfluorophenylazanediyl methylphosphanediyl ethylphosphanediylpropylphosphanediyl butylphosphanediyl cyclohexylphosphanediylphenylphosphanediyl methylboranediyl phenylboranediyl methylenedimethylmethylene diethylmethylene dibutylmethylene dipropylmethylenediphenylmethylene ditolylmethylene di(butylphenyl)methylenedi(trimethylsilylphenyl)methylene di(triethylsilylphenyl)methylenedibenzylmethylene cyclotetramethylenemethylenecyclopentamethylenemethylene ethylene methylethylene dimethylethylenetrimethylethylene tetramethylethylene cyclopentylene cyclohexylenecycloheptylene cyclooctylene propanediyl methylpropanediyldimethylpropanediyl trimethylpropanediyl tetramethylpropanediylpentamethylpropanediyl hexamethylpropanediyl tetramethyldisiloxylenevinylene ethene-1,1-diyl divinylsilylene dipropenylsilylenedibutenylsilylene methylvinylsilylene methylpropenylsilylenemethylbutenylsilylene dimethylsilylmethylene diphenylsilylmethylenedimethylsilylethylene diphenylsilylethylene dimethylsilylpropylenediphenylsilylpropylene dimethylstannylene diphenylstannylene Cp, Cp*,CpR or (C₅H_(5−y−x)S″_(x)) Cyclopentadienyl methylcyclopentadienylDimethylcyclopentadienyl TrimethylcyclopentadienylTetramethylcyclopentadienyl Pentamethylcyclopentadienyl (no A′)Ethylcyclopentadienyl Diethylcyclopentadienyl PropylcyclopentadienylDipropylcyclopentadienyl Butylcyclopentadienyl DibutylcyclopentadienylPentylcyclopentadienyl Dipentylcyclopentadienyl HexylcyclopentadienylDihexylcyclopentadienyl Heptylcyclopentadienyl DiheptylcyclopentadienylOctylcyclopentadienyl Dioctylcyclopentadienyl NonylcyclopentadienylDinonylcyclopentadienyl Decylcyclopentadienyl DidecylcyclopentadienylUndecylcyclopentadienyl Dodecylcyclopentadienyl TridecylcyclopentadienylTetradecylcyclopentadienyl Pentadecylcyclopentadienyl (no A′)Hexadecylcyclopentadienyl HeptadecylcyclopentadienylOctadecylcyclopentadienyl NonadecylcyclopentadienylEicosylcyclopentadienyl HeneicosylcyclopentadienylDocosylcyclopentadienyl TricosylcyclopentadienylTetracosylcyclopentadienyl PentacosylcyclopentadienylHexacosylcyclopentadienyl HeptacosylcyclopentadienylOctacosylcyclopentadienyl NonacosylcyclopentadienylTriacontylcyclopentadienyl CyclohexylcyclopentadienylPhenylcyclopentadienyl Diphenylcyclopentadienyltriphenylcyclopentadienyl tetraphenylcyclopentadienylpentaphenylcyclopentadienyl tolylcyclopentadineyl benzylcyclopentadienylphenethylcyclopentadienyl cyclohexylmethylcyclopentadienylnapthylcyclopentadienyl methylphenylcyclopentadienylmethyltolylcyclopentadienyl methylethylcyclopentadienylmethylpropylcyclopentadienyl methylbutylcyclopentadienylmethylpentylcyclopentadienyl methylhexylcyclopentadienylmethylheptylcyclopentadienyl methyloctylcyclopentadienylmethylnonylcyclopentadienyl methyldecylcyclopentadienylvinylcyclopentadienyl propenylcyclopentadienyl butenylcyclopentadienylindenyl methylindenyl dimethylindenyl trimethylindenylmethylpropylindenyl dimethylpropylindenyl methyldipropylindenylmethylethylindenyl methylbutylindenyl ethylindenyl propylindenylbutylindenyl pentylindenyl hexylindenyl heptylindenyl octylindenylnonylindenyl decylindenyl phenylindenyl (fluorophenyl)indenyl(methylphenyl)indenyl biphenylindenyl(bis(trifluoromethyl)phenyl)indenyl napthylindenyl phenanthrylindenylbenzylindenyl benzindenyl cyclohexylindenyl methylphenylindenylethylphenylindenyl propylphenylindenyl methylnapthylindenylethylnapthylindenyl propylnapthylindenyl (methylphenyl)indenyl(dimethylphenyl)indenyl (ethylphenyl)indenyl (diethylphenyl)indenyl(propylphenyl)indenyl (dipropylphenyl)indenyl methyltetrahydroindenyldimethyltetrahydroindenyl dimethyldihydroindenyl dimethyltrihydroindenylmethylphenyltetrahydroindenyl methylphenyldihydroindenylmethylphenyltrihydroindenyl ethyltetrahydroindenylpropyltetrahydroindenyl butyltetrahydroindenyl phenyltetrahydroindenylfluorenyl methylfluorenyl dimethylfluorenyl trimethylfluorenylethylfluorenyl propylfluorenyl butylfluorenyl dibutylfluorenylpentylfluorenyl hexylfluorenyl heptylfluorenyl octylfluorenylnonylfluorenyl decylfluorenyl phenylfluorenyl napthylfluorenylbenzylfluorenyl methylphenylfluorenyl ethylphenylfluorenylpropylphenylfluorenyl methylnapthylfluorenyl ethylnapthylfluorenylpropylnapthylfluorenyl octahydrofluorenyl tetrahydrofluorenyloctamethyloctahydrodibenzo[b,h]fluorenyltetramethyltetrahydrobenzo[b]fluorenyl diphenylmethylcyclopentadienyltrimethylsilylcyclopentadienyl triethylsilylcyclopentadienyltrimethylgermylcyclopentadienyl trimethylstannylcyclopentadienyltriethylplumbylcyclopentadienyl trifluromethylcyclopentadienylN,N-dimethylamidocyclopentadienyl P,P-dimethylphosphidocyclopentadienylN,N-diethylamidocyclopentadienyl methoxycyclopentadienylethoxycyclopentadienyl trimethylsiloxycyclopentadienyl(N,N-dimethylamidomethyl)cyclopentadienyl methyoxyindenyldimethyoxyindenyl N,N-dimethylaminoindenyl trimethylsiloxyindenylbutyldimethylsiloxyindenyl bis(N,N-dimethylamino)indenyldi(trimethylsiloxy)indenyl di(butyldimethylsiloxy)indenylmethoxyfluorenyl dimethoxyfluorenyl N,N-dimethylaminofluorenyltrimethylsiloxyfluorenyl butyldimethylsiloxyfluorenyl dimethoxyfluorenylbis(N,N-dimethylamino)fluorenyl di(trimethylsiloxy)fluorenyldi(butyldimethylsiloxy)fluorenyl (JS′_(z−1−y)) (y = 1) MethylamidoEthylamido Propylamido Butylamido Pentylamido Hexylamido HeptylamidoOctylamido Nonylamido Decylamido Eicosylamido HeneicosylamidoDocosylamido Tricosylamido Tetracosylamido PentacosylamidoHexacosylamido Heptacosylamido Octacosylamido NonacosylamidoTriacontylamido Phenylamido Tolylamido Phenethylamido BenzylamidoCyclobutylamido Cyclopentylamido Cyclohexylamido CycloheptylamidoCyclooctylamido Cyclononylamido Cyclodecylamido CyclododecylamidoAdamantylamido Norbornylamido Perfluorophenylamido FluorophenylamidoDifluorophenylamido Oxo Sulfido (JS′_(z−1−y)) (y = 0) Methoxide EthoxidePhenoxide Dimethylphenoxide Dipropylphenoxide Methylthio EthylthioPhenylthio Dimethylphenylthio Dipropylphenylthio X₁ or X₂ chloridebromide iodide fluoride hydride methyl ethyl propyl butyl pentyl hexylheptyl octyl nonyl decyl undecyl dodecyl tridecyl tetradecyl pentadecylhexadecyl heptadecyl octadecyl nonadecyl eicosyl heneicosyl docosyltricosyl tetracosyl pentacosyl hexacosyl heptacosyl octacosyl nonacosyltriacontyl phenyl benzyl phenethyl tolyl methoxy ethoxy propoxy butoxydimethylamido diethylamido methylethylamido phenoxy benzoxy allyl X₁ andX₂ together methylidene ethylidene propylidene tetramethylenepentamethylene hexamethylene ethylenedihydroxy butadiene methylbutadienedimethylbutadiene pentadiene methylpentadiene dimethylpentadienehexadiene methylhexadiene dimethylhexadiene M titanium zirconium hafniumL or L′ (optional) ethylene propylene butene hexene styrene hexadienebutadiene dimethylbutadiene pentadiene methylhexadiene dimethylhexadieneacetylene methylacetylene ethylacetylene benzyne cyclopentenecyclohexene L′ (optional) diethylether dimethylether trimethylaminetriphenylamine triethylamine tricyclohexylphosphine triphenylphosphinetrimethylphosphine tetrahydrofuran furan thiophene dimethylsulfidediphenylsulfide

[0275] Additional preferred catalysts include those described in WO01/48034, which is incorporated herein by reference. Particularlypreferred catalyst compounds include those disclosed at page 9, line 38to page 25, line 42, page 28, lines 5 to 17, and page 30, line 37 topage 35, line 28.

[0276] Activators and Activation Methods for Catalyst Compounds

[0277] The polymerization pre-catalyst compounds, described above, aretypically activated in various ways to yield compounds having a vacantcoordination site that will coordinate, insert, and polymerizeolefin(s). For the purposes of this patent specification and appendedclaims, the terms “cocatalyst” and “activator” are used hereininterchangeably and are defined to be any compound which can activateany one of the catalyst compounds described above by converting theneutral catalyst compound to a catalytically active catalyst compoundcation. Non-limiting activators, for example, include alumoxanes,aluminum alkyls, ionizing activators, which may be neutral or ionic, andconventional-type cocatalysts. Preferred activators typically includealumoxane compounds, modified alumoxane compounds, and ionizing anionprecursor compounds that abstract one reactive, σ-bound, metal ligandmaking the metal complex cationic and providing a charge-balancingnoncoordinating or weakly coordinating anion.

[0278] Aluminoxane and Aluminum Alkyl Activators

[0279] In one embodiment, alumoxane activators are utilized as anactivator in the catalyst composition useful in the invention.Alumoxanes are generally oligomeric compounds containing —Al(R¹)—O—sub-units, where R¹ is an alkyl group. Examples of alumoxanes includemethylalumoxane (MAO), modified methylalumoxane (MMAO), ethylalumoxaneand isobutylalumoxane. Alkylalumoxanes and modified alkylalumoxanes aresuitable as catalyst activators, particularly when the abstractableligand is a halide, alkoxide or amide. Mixtures of different alumoxanesand modified alumoxanes may also be used.

[0280] The activator compounds comprising Lewis-acid activators and inparticular alumoxanes are represented by the following general formulae:

(R³—Al—O)_(p)   (11)

R⁴(R⁵—Al—O)_(p)—AlR⁶ ₂   (12)

(M′)^(m+)Q′_(m)   (13)

[0281] An alumoxane is generally a mixture of both the linear and cycliccompounds. In the general alumoxane formula, R³, R⁴, R⁵ and R⁶ are,independently a C₁-C₃₀ alkyl radical, for example, methyl, ethyl,propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, and “p” is aninteger from 1 to about 50. Most preferably, R³, R⁴, R⁵ and R⁶ are eachmethyl and “p” is a least 4. When an alkyl aluminum halide or alkoxideis employed in the preparation of the alumoxane, one or more R³⁻⁶ groupsmay be halide or alkoxide. M′ is a metal or metalloid, and Q′ is apartially or fully fluorinated hydrocarbyl.

[0282] It is recognized that alumoxane is not a discrete material. Atypical alumoxane will contain free trisubstituted or trialkyl aluminum,bound trisubstituted or trialkyl aluminum, and alumoxane molecules ofvarying degree of oligomerization. Those methylalumoxanes most preferredcontain lower levels of trimethylaluminum. Lower levels oftrimethylaluminum can be achieved by reaction of the trimethylaluminumwith a Lewis base or by vacuum distillation of the trimethylaluminum orby any other means known in the art. It is also recognized that afterreaction with the transition metal compound, some alumoxane moleculesare in the anionic form as represented by the anion in equations 4-6,thus for our purposes are considered “non-coordinating” anions.

[0283] For further descriptions, see U.S. Pat. Nos. 4,665,208,4,952,540, 5,041,584, 5,091,352, 5,206,199, 5,204,419, 4,874,734,4,924,018, 4,908,463, 4,968,827, 5,329,032, 5,248,801, 5,235,081,5,157,137, 5,103,031 and EP 0 561 476 A1, EP 0 279 586B1, EP 0 516 476A,EP 0 594 218A1 and WO 94/10180.

[0284] When the activator is an alumoxane (modified or unmodified), someembodiments select the maximum amount of activator at a 5000-fold molarexcess Al/M over the catalyst precursor (per metal catalytic site). Theminimum activator-to-catalyst-precursor is a 1:1 molar ratio.

[0285] Alumoxanes may be produced by the hydrolysis of the respectivetrialkylaluminum compound. MMAO may be produced by the hydrolysis oftrimethylaluminum and a higher trialkylaluminum such astriisobutylaluminum. MMAO's are generally more soluble in aliphaticsolvents and more stable during storage. There are a variety of methodsfor preparing alumoxane and modified alumoxanes, non-limiting examplesof which are described in U.S. Pat. Nos. 4,665,208, 4,952,540,5,091,352, 5,206,199, 5,204,419, 4,874,734, 4,924,018, 4,908,463,4,968,827, 5,308,815, 5,329,032, 5,248,801, 5,235,081, 5,157,137,5,103,031, 5,391,793, 5,391,529, 5,693,838, 5,731,253, 5,731,451,5,744,656, 5,847,177, 5,854,166, 5,856,256 and 5,939,346 and Europeanpublications EP-A-0 561 476, EP-B1-0 279 586, EP-A-0 594-218 and EP-B1-0586 665, and PCT publications WO 94/10180 and WO 99/15534, all of whichare herein fully incorporated by reference. It may be preferable to usea visually clear methylalumoxane. A cloudy or gelled alumoxane can befiltered to produce a clear solution or clear alumoxane can be decantedfrom the cloudy solution. Another alumoxane is a modified methylalumoxane (MMAO) cocatalyst type 3A (commercially available from AkzoChemicals, Inc. under the trade name Modified Methylalumoxane type 3A,covered under patent number U.S. Pat. No. 5,041,584).

[0286] Aluminum alkyl or organoaluminum compounds which may be utilizedas activators (or scavengers) include trimethylaluminum,triethylaluminum, triisobutylaluminum, tri-n-hexylaluminum,tri-n-octylaluminum and the like.

[0287] Ionizing Activators

[0288] It is within the scope of this invention to use an ionizing orstoichiometric activator, neutral or ionic, such as tri(n-butyl)ammoniumtetrakis (pentafluorophenyl)boron, a trisperfluorophenyl boron metalloidprecursor or a trisperfluoronaphtyl boron metalloid precursor,polyhalogenated heteroborane anions (WO 98/43983), boric acid (U.S. Pat.No. 5,942,459) or combination thereof. It is also within the scope ofthis invention to use neutral or ionic activators alone or incombination with alumoxane or modified alumoxane activators.

[0289] Examples of neutral stoichiometric activators includetri-substituted boron, tellurium, aluminum, gallium and indium ormixtures thereof. The three substituent groups are each independentlyselected from alkyls, alkenyls, halogen, substituted alkyls, aryls,arylhalides, alkoxy and halides. Preferably, the three groups areindependently selected from halogen, mono or multicyclic (includinghalosubstituted)aryls, alkyls, and alkenyl compounds and mixturesthereof, preferred are alkenyl groups having 1 to 20 carbon atoms, alkylgroups having 1 to 20 carbon atoms, alkoxy groups having 1 to 20 carbonatoms and aryl groups having 3 to 20 carbon atoms (including substitutedaryls). More preferably, the three groups are alkyls having 1 to 4carbon groups, phenyl, napthyl or mixtures thereof. Even morepreferably, the three groups are halogenated, preferably fluorinated,aryl groups. Most preferably, the neutral stoichiometric activator istrisperfluorophenyl boron or trisperfluoronapthyl boron.

[0290] Ionic stoichiometric activator compounds may contain an activeproton, or some other cation associated with, but not coordinated to, oronly loosely coordinated to, the remaining ion of the ionizing compound.Such compounds and the like are described in European publicationsEP-A-0 570 982, EP-A-0 520 732, EP-A-0 495 375, EP-B1-0 500 944, EP-A-0277 003 and EP-A-0 277 004, and U.S. Pat. Nos. 5,153,157, 5,198,401,5,066,741, 5,206,197, 5,241,025, 5,384,299 and 5,502,124 and U.S. patentapplication Ser. No. 08/285,380, filed Aug. 3, 1994, all of which areherein fully incorporated by reference.

[0291] Ionic catalysts can be preparedly reacting a transition metalcompound with some neutral Lewis acids, such as B(C₆F₆)₃, which uponreaction with the hydrolyzable ligand (X) of the transition metalcompound forms an anion, such as ([B(C₆F₅)₃(X)]⁻), which stabilizes thecationic transition metal species generated by the reaction. Thecatalysts can be, and preferably are, prepared with activator componentswhich are ionic compounds or compositions. However preparation ofactivators utilizing neutral compounds is also contemplated by thisinvention.

[0292] Compounds useful as an activator component in the preparation ofthe ionic catalyst systems used in the process of this inventioncomprise a cation, which is preferably a Bronsted acid capable ofdonating a proton, and a compatible non-coordinating anion which anionis relatively large (bulky), capable of stabilizing the active catalystspecies (the Group 4 cation) which is formed when the two compounds arecombined and said anion will be sufficiently labile to be displaced byolefinic diolefinic and acetylenically unsaturated substrates or otherneutral Lewis bases such as ethers, nitrites and the like. Two classesof compatible non-coordinating anions have been disclosed in EPA 277,003and EPA 277,004 published 1988:1) anionic coordination complexescomprising a plurality of lipophilic radicals covalently coordinated toand shielding a central charge-bearing metal or metalloid core, and 2)anions comprising a plurality of boron atoms such as carboranes,metallacarboranes and boranes.

[0293] In a preferred embodiment, the stoichiometric activators includea cation and an anion component, and may be represented by the followingformula:

(L-H)_(d) ⁺(A^(d−)) (14)

[0294] wherein L is an neutral Lewis base;

[0295] H is hydrogen;

[0296] (L-H)⁺ is a Bronsted acid

[0297] A^(d−) is a non-coordinating anion having the charge d−d is aninteger from 1 to 3.

[0298] The cation component, (L-H)_(d) ⁺ may include Bronsted acids suchas protons or protonated Lewis bases or reducible Lewis acids capable ofprotonating or abstracting a moiety, such as an alkyl or aryl, from thebulky ligand metallocene containing transition metal catalyst precursor,resulting in a cationic transition metal species.

[0299] The activating cation (L-H)_(d) ⁺ may be a Bronsted acid, capableof donating a proton to the transition metal catalytic precursorresulting in a transition metal cation, including ammoniums, oxoniums,phosphoniums, silyliums, and mixtures thereof, preferably ammoniums ofmethylamine, aniline, dimethylamine, diethylamine, N-methylaniline,diphenylamine, trimethylamine, triethylamine, N,N-dimethylaniline,methyldiphenylamine, pyridine, p-bromo N,N-dimethylaniline,p-nitro-N,N-dimethylaniline, phosphoniums from triethylphosphine,triphenylphosphine, and diphenylphosphine, oxomiuns from ethers such asdimethyl ether diethyl ether, tetrahydrofuran and dioxane, sulfoniumsfrom thioethers, such as diethyl thioethers and tetrahydrothiophene, andmixtures thereof. The activating cation (L-H)_(d) ⁺ may also be a moietysuch as silver, tropylium, carbeniums, ferroceniums and mixtures,preferably carboniums and ferroceniums. Most preferably (L-H)_(d) ⁺ istriphenyl carbonium.

[0300] The anion component A^(d−) include those having the formula[M^(k+)Q_(n)]^(d−) wherein k is an integer from 1 to 3; n is an integerfrom 2-6; n-k=d; M is an element selected from Group 13 of the PeriodicTable of the Elements, preferably boron or aluminum, and Q isindependently a hydride, bridged or unbridged dialkylamido, halide,alkoxide, aryloxide, hydrocarbyl, substituted hydrocarbyl, halocarbyl,substituted halocarbyl, and halosubstituted-hydrocarbyl radicals, said Qhaving up to 20 carbon atoms with the proviso that in not more than 1occurrence is Q a halide. Preferably, each Q is a fluorinatedhydrocarbyl group having 1 to 20 carbon atoms, more preferably each Q isa fluorinated aryl group, and most preferably each Q is a pentafluorylaryl group. Examples of suitable A^(d−) also include diboron compoundsas disclosed in U.S. Pat. No. 5,447,895, which is fully incorporatedherein by reference.

[0301] Illustrative, but not limiting examples of boron compounds whichmay be used as an activating cocatalyst in the preparation of theimproved catalysts of this invention are tri-substituted ammonium saltssuch as:

[0302] trimethylammonium tetraphenylborate, triethylammoniumtetraphenylborate, tripropylammonium tetraphenylborate,tri(n-butyl)ammonium tetraphenylborate, tri(t-butyl)ammoniumtetraphenylborate, N,N-dimethylanilinium tetraphenylborate,N,N-diethylanilinium tetraphenylborate,N,N-dimethyl-(2,4,6-trimethylanilinium)tetraphenylborate, tropilliumtetraphenylborate, triphenylcarbenium tetraphenylborate,triphenylphosphonium tetraphenylborate triethylsilyliumtetraphenylborate, benzene(diazonium)tetraphenylborate,trimethylammonium tetrakis(pentafluorophenyl)borate, triethylammoniumtetrakis(pentafluorophenyl)borate, tripropylammoniumtetrakis(pentafluorophenyl)borate, tri(n-butyl)ammoniumtetrakis(pentafluorophenyl)borate, tri(sec-butyl)ammoniumtetrakis(pentafluorophenyl)borate, N,N-dimethylaniliniumtetrakis(pentafluorophenyl)borate, N,N-diethylaniliniumtetrakis(pentafluorophenyl)borate,N,N-dimethyl-(2,4,6-trimethylanilinium)tetrakis(pentafluorophenyl)borate,tropillium tetrakis(pentafluorophenyl)borate, triphenylcarbeniumtetrakis(pentafluorophenyl)borate, triphenylphosphoniumtetrakis(pentafluorophenyl)borate, triethylsilyliumtetrakis(pentafluorophenyl)borate,benzene(diazonium)tetrakis(pentafluorophenyl)borate, trimethylammoniumtetrakis-(2,3,4,6-tetrafluorophenyl)borate, triethylammoniumtetrakis-(2,3,4,6-tetrafluorophenyl)borate, tripropylammoniumtetrakis-(2,3,4,6-tetrafluorophenyl)borate, tri(n-butyl)ammoniumtetrakis-(2,3,4,6-tetrafluorophenyl)borate, dimethyl(t-butyl)ammoniumtetrakis-(2,3,4,6-tetrafluorophenyl)borate, N,N-dimethylaniliniumtetrakis-(2,3,4,6-tetrafluorophenyl)borate, N,N-diethylaniliniumtetrakis-(2,3,4,6-tetrafluorophenyl)borate,N,N-dimethyl-(2,4,6-trimethylanilinium)tetrakis-(2,3,4,6-tetrafluorophenyl)borate,tropillium tetrakis-(2,3,4,6-tetrafluorophenyl)borate,triphenylcarbenium tetrakis-(2,3,4,6-tetrafluorophenyl)borate,triphenylphosphonium tetrakis-(2,3,4,6-tetrafluorophenyl)borate,triethylsilylium tetrakis-(2,3,4,6-tetrafluorophenyl)borate,benzene(diazonium)tetrakis-(2,3,4,6-tetrafluorophenyl)borate,trimethylammonium tetrakis(perfluoronapthyl)borate, triethylammoniumtetrakis(perfluoronapthyl)borate, tripropylammoniumtetrakis(perfluoronapthyl)borate, tri(n-butyl)ammoniumtetrakis(perfluoronapthyl)borate, tri(t-butyl)ammoniumtetrakis(perfluoronapthyl)borate, N,N-dimethylaniliniumtetrakis(perfluoronapthyl)borate, N,N-diethylaniliniumtetrakis(perfluoronapthyl)borate,N,N-dimethyl-(2,4,6-trimethylanilinium)tetrakis(perfluoronapthyl)borate,tropillium tetrakis(perfluoronapthyl)borate, triphenylcarbeniumtetrakis(perfluoronapthyl)borate, triphenylphosphoniumtetrakis(perfluoronapthyl)borate, triethylsilyliumtetrakis(perfluoronapthyl)borate,benzene(diazonium)tetrakis(perfluoronapthyl)borate, trimethylammoniumtetrakis(perfluorobiphenyl)borate, triethylammoniumtetrakis(perfluorobiphenyl)borate, tripropylammoniumtetrakis(perfluorobiphenyl)borate, tri(n-butyl)ammoniumtetrakis(perfluorobiphenyl)borate, tri(t-butyl)ammoniumtetrakis(perfluorobiphenyl)borate, N,N-dimethylaniliniumtetrakis(perfluorobiphenyl)borate, N,N-diethylaniliniumtetrakis(perfluorobiphenyl)borate,N,N-dimethyl-(2,4,6-trimethylanilinium)tetrakis(perfluorobiphenyl)borate,tropillium tetrakis(perfluorobiphenyl)borate, triphenylcarbeniumtetrakis(perfluorobiphenyl)borate, triphenylphosphoniumtetrakis(perfluorobiphenyl)borate, triethylsilyliumtetrakis(perfluorobiphenyl)borate,benzene(diazonium)tetrakis(perfluorobiphenyl)borate, trimethylammoniumtetrakis(3,5-bis(trifluoromethyl)phenyl)borate, triethylammoniumtetrakis(3,5-bis(trifluoromethyl)phenyl)borate, tripropylammoniumtetrakis(3,5-bis(trifluoromethyl)phenyl)borate, tri(n-butyl)ammoniumtetrakis(3,5-bis(trifluoromethyl)phenyl)borate, tri(t-butyl)ammoniumtetrakis(3,5-bis(trifluoromethyl)phenyl)borate, N,N-dimethylaniliniumtetrakis(3,5-bis(trifluoromethyl)phenyl)borate, N,N-diethylaniliniumtetrakis(3,5-bis(trifluoromethyl)phenyl)borate,N,N-dimethyl-(2,4,6-trimethylanilinium)tetrakis(3,5-bis(trifluoromethyl)phenyl)borate,tropillium tetrakis(3,5-bis(trifluoromethyl)phenyl)borate,triphenylcarbenium tetrakis(3,5-bis(trifluoromethyl)phenyl)borate,triphenylphosphonium tetrakis(3,5-bis(trifluoromethyl)phenyl)borate,triethylsilylium tetrakis(3,5-bis(trifluoromethyl)phenyl)borate,benzene(diazonium)tetrakis(3,5-bis(trifluoromethyl)phenyl)borate, anddialkyl ammonium salts such as: di-(i-propyl)ammoniumtetrakis(pentafluorophenyl)borate, and dicyclohexylammoniumtetrakis(pentafluorophenyl)borate; and additional tri-substitutedphosphonium salts such as tri(o-tolyl)phosphoniumtetrakis(pentafluorophenyl)borate, andtri(2,6-dimethylphenyl)phosphonium tetrakis(pentafluorophenyl)borate.

[0303] Most preferably, the ionic stoichiometric activator (L-H)_(d)⁺(A^(d−)) is N,N-dimethylanilinium tetra(perfluorophenyl)borate,N,N-dimethylanilinium tetrakis(perfluoronapthyl)borate,N,N-dimethylanilinium tetrakis(perfluorobiphenyl)borate,N,N-dimethylanilinium tetrakis(3,5-bis(trifluoromethyl)phenyl)borate,triphenylcarbenium tetrakis(perfluoronapthyl)borate, triphenylcarbeniumtetrakis(perfluorobiphenyl)borate, triphenylcarbeniumtetrakis(3,5-bis(trifluoromethyl)phenyl)borate, or triphenylcarbeniumtetra(perfluorophenyl)borate.

[0304] In one embodiment, an activation method using ionizing ioniccompounds not containing an active proton but capable of producing abulky ligand metallocene catalyst cation and their non-coordinatinganion are also contemplated, and are described in EP-A-0 426 637, EP-A-0573 403 and U.S. Pat. No. 5,387,568, which are all herein incorporatedby reference.

[0305] The term “non-coordinating anion” (NCA) means an anion whicheither does not coordinate to said cation or which is only weaklycoordinated to said cation thereby remaining sufficiently labile to bedisplaced by a neutral Lewis base. “Compatible” non-coordinating anionsare those which are not degraded to neutrality when the initially formedcomplex decomposes. Further, the anion will not transfer an anionicsubstituent or fragment to the cation so as to cause it to form aneutral four coordinate metallocene compound and a neutral by-productfrom the anion. Non-coordinating anions useful in accordance with thisinvention are those that are compatible, stabilize the metallocenecation in the sense of balancing its ionic charge at +1, yet retainsufficient lability to permit displacement by an ethylenically oracetylenically unsaturated monomer during polymerization. These types ofcocatalysts sometimes use tri-isobutyl aluminum or tri-octyl aluminum asa scavenger.

[0306] Invention process also can employ cocatalyst compounds oractivator compounds that are initially neutral Lewis acids but form acationic metal complex and a noncoordinating anion, or a zwitterioniccomplex upon reaction with the invention compounds. For example,tris(pentafluorophenyl)boron or aluminum act to abstract a hydrocarbylor hydride ligand to yield an invention cationic metal complex andstabilizing noncoordinating anion, see EP-A-0 427 697 and EP-A-0 520 732for illustrations of analogous Group-4 metallocene compounds. Also, seethe methods and compounds of EP-A-0 495 375. For formation ofzwitterionic complexes using analogous Group 4 compounds, see U.S. Pat.Nos. 5,624,878; 5,486,632; and 5,527,929.

[0307] When the cations of noncoordinating anion precursors are Bronstedacids such as protons or protonated Lewis bases (excluding water), orreducible Lewis acids such as ferrocenium or silver cations, or alkalior alkaline earth metal cations such as those of sodium, magnesium orlithium, the catalyst-precursor-to-activator molar ratio may be anyratio. Combinations of the described activator compounds may also beused for activation. For example, tris(perfluorophenyl)boron can be usedwith methylalumoxane.

[0308] Conventional-Type Cocatalysts (Activators)

[0309] Typically, conventional transition metal catalyst compoundsexcluding some conventional-type chromium catalyst compounds areactivated with one or more of the conventional cocatalysts which may berepresented by the formula:

M³M⁴ _(v)X² _(c)R² _(b-c)   (15)

[0310] wherein M³ is a metal from Group 1 to 3 and 12 to 13 of thePeriodic Table of Elements; M⁴ is a metal of Group 1 of the PeriodicTable of Elements; v is a number from 0 to 1; each X² is any halogen; cis a number from 0 to 3; each R² is a monovalent hydrocarbon radical orhydrogen; b is a number from 1 to 4; and wherein b minus c is atleast 1. Other conventional-type organometallic cocatalyst compounds forthe above conventional-type transition metal catalysts have the formulaM³R² _(k), where M³ is a Group IA, IIA, IIB or IIIA metal, such aslithium, sodium, beryllium, barium, boron, aluminum, zinc, cadmium, andgallium; k equals 1, 2 or 3 depending upon the valency of M³ whichvalency in turn normally depends upon the particular Group to which M³belongs; and each R² may be any monovalent hydrocarbon radical.

[0311] Non-limiting examples of conventional-type organometalliccocatalyst compounds useful with the conventional-type catalystcompounds described above include methyllithium, butyllithium,dihexylmercury, butylmagnesium, diethylcadmium, benzylpotassium,diethylzinc, tri-n-butylaluminum, diisobutyl ethylboron, diethylcadmium,di-n-butylzinc and tri-n-amylboron, and, in particular, the aluminumalkyls, such as tri-hexyl-aluminum, triethylaluminum, trimethylaluminum,and tri-isobutylaluminum. Other conventional-type cocatalyst compoundsinclude mono-organohalides and hydrides of Group 2 metals, and mono- ordi-organohalides and hydrides of Group 3 and 13 metals. Non-limitingexamples of such conventional-type cocatalyst compounds includedi-isobutylaluminum bromide, isobutylboron dichloride, methyl magnesiumchloride, ethylberyllium chloride, ethylcalcium bromide,di-isobutylaluminum hydride, methylcadmium hydride, diethylboronhydride, hexylberyllium hydride, dipropylboron hydride, octylmagnesiumhydride, butylzinc hydride, dichloroboron hydride, di-bromo-aluminumhydride and bromocadmium hydride. Conventional-type organometalliccocatalyst compounds are known to those in the art and a more completediscussion of these compounds may be found in U.S. Pat. Nos. 3,221,002and 5,093,415, which are herein fully incorporated by reference.

[0312] Additional Activators

[0313] Other activators include those described in PCT publication WO98/07515 such as tris (2,2′,2″-nonafluorobiphenyl)fluoroaluminate, whichpublication is fully incorporated herein by reference. Combinations ofactivators are also contemplated by the invention, for example,alumoxanes and ionizing activators in combinations, see for example,EP-B1 0 573 120, PCT publications WO 94/07928 and WO 95/14044 and U.S.Pat. Nos. 5,153,157 and 5,453,410 all of which are herein fullyincorporated by reference.

[0314] Other suitable activators are disclosed in WO 98/09996,incorporated herein by reference, which describes activating bulkyligand metallocene catalyst compounds with perchlorates, periodates andiodates including their hydrates. WO 98/30602 and WO 98/30603,incorporated by reference, describe the use of lithium(2,2′-bisphenyl-ditrimethylsilicate).4THF as an activator for a bulkyligand metallocene catalyst compound. WO 99/18135, incorporated hereinby reference, describes the use of organo-boron-aluminum acitivators.EP-B1-0 781 299 describes using a silylium salt in combination with anon-coordinating compatible anion. Also, methods of activation such asusing radiation (see EP-B1-0 615 981 herein incorporated by reference),electro-chemical oxidation, and the like are also contemplated asactivating methods for the purposes of rendering the neutral bulkyligand metallocene catalyst compound or precursor to a bulky ligandmetallocene cation capable of polymerizing olefins. Other activators ormethods for activating a bulky ligand metallocene catalyst compound aredescribed in for example, U.S. Pat. Nos. 5,849,852, 5,859,653 and5,869,723 and WO 98/32775, WO 99/42467(dioctadecylmethylammonium-bis(tris(pentafluorophenyl)borane)benzimidazolide),which are herein incorporated by reference.

[0315] Another suitable ion forming, activating cocatalyst comprises asalt of a cationic oxidizing agent and a noncoordinating, compatibleanion represented by the formula:

(OX^(e+))_(d)(A^(d−))_(e)   (16)

[0316] wherein OX^(e+) is a cationic oxidizing agent having a charge ofe+; e is an integer from 1 to 3; and A⁻, and d are as previouslydefined. Examples of cationic oxidizing agents include: ferrocenium,hydrocarbyl-substituted ferrocenium, Ag⁺, or Pb⁺². Preferred embodimentsof A^(d−) are those anions previously defined with respect to theBronsted acid containing activators, especiallytetrakis(pentafluorophenyl)borate.

[0317] It within the scope of this invention that catalyst compounds canbe combined one or more activators or activation methods describedabove. For example, a combination of activators have been described inU.S. Pat. Nos. 5,153,157 and 5,453,410, European publication EP-B1 0 573120, and PCT publications WO 94/07928 and WO 95/14044. These documentsall discuss the use of an alumoxane and an ionizing activator with abulky ligand metallocene catalyst compound.

[0318] The Choice of Transition Metal Catylst Components

[0319] The catalyst system of this invention comprises two or moretransition metal compounds as described above. At least one of thecompounds must be capable of producing a crystalline poly-α-olefin,preferably isotactic polypropylene or syndiotactic polypropylene, havinga crystallinity of 40% or more. The other compound must be capable ofproducing an amorphous poly-α-olefin, preferably atactic polypropylene,having a crystallinity of 20% or less.

[0320] The choice of transition metal component for the crystallinepolymer fraction is a subset of the transition metal component ofequations 8-9. This preferred component is illustrated in equation 17:

[0321] wherein A′, M, X₁ and X₂ are as previously defined. SubstituentsS”_(v) are independently defined as S″ in equations 8-9 where thesubscript “v” denotes the carbon atom on the Cp-ring to which thesubstituent is bonded.

[0322] Preferably metallocene precursors for producing poly-α-olefinshaving enhanced isotactic character are those of Equation 17 whereS″_(v) are independently chosen such that the metallocene framework 1)has no plane of symmetry containing the metal center, and 2) has aC₂-axis of symmetry through the metal center. Such complexes, such asrac-Me₂Si(indenyl)₂ZrMe₂ and rac-Me₂Si(indenyl)₂HfMe₂ are well known inthe art and generally produce isotactic polymers with higher degrees ofstereoregularity than the less symmetric chiral systems. Likewiseanother preferred class of transition metal compounds that can produceisotactic polymers useful in this invention are thosemonocyclopentadienyl catalysts disclosed in U.S. Pat. No. 5,026,798,which is incorporated by reference herein.

[0323] Preferred chiral racemic metallocene compounds which, accordingto the present invention, provide catalyst systems which are specific tothe production of isotactic poly-α-olefins include the racemic versionsof:

[0324] dimethylsilylbis(indenyl)zirconium dichloride,dimethylsilylbis(indenyl)zirconium dimethyl,diphenylsilylbis(indenyl)zirconium dichloride,diphenylsilylbis(indenyl)zirconium dimethyl,methylphenylsilylbis(indenyl)zirconium dichloride,methylphenylsilylbis(indenyl)zirconium dimethyl,ethylenebis(indenyl)zirconium dichloride, ethylenebis(indenyl)zirconiumdimethyl, methylenebis(indenyl)zirconium dichloride,methylenebis(indenyl)zirconium dimethyl,dimethylsilylbis(indenyl)hafnium dichloride,dimethylsilylbis(indenyl)hafnium dimethyl,diphenylsilylbis(indenyl)hafnium dichloride,diphenylsilylbis(indenyl)hafnium dimethyl,methylphenylsilylbis(indenyl)hafnium dichloride,methylphenylsilylbis(indenyl)hafnium dimethyl,ethylenebis(indenyl)hafnium dichloride, ethylenebis(indenyl)hafniumdimethyl, methylenebis(indenyl)hafnium dichloride,methylenebis(indenyl)hafnium dimethyl,dimethylsilylbis(tetrahydroindenyl)zirconium dichloride,dimethylsilylbis(tetrahydroindenyl)zirconium dimethyl,diphenylsilylbis(tetrahydroindenyl)zirconium dichloride,diphenylsilylbis(tetrahydroindenyl)zirconium dimethyl,methylphenylsilylbis(tetrahydroindenyl)zirconium dichloride,methylphenylsilylbis(tetrahydroindenyl)zirconium dimethyl,ethylenebis(tetrahydroindenyl)zirconium dichloride,ethylenebis(tetrahydroindenyl)zirconium dimethyl,methylenebis(tetrahydroindenyl)zirconium dichloride,methylenebis(tetrahydroindenyl)zirconium dimethyl,dimethylsilylbis(tetrahydroindenyl)hafnium dichloride,dimethylsilylbis(tetrahydroindenyl)hafnium dimethyl,diphenylsilylbis(tetrahydroindenyl)hafnium dichloride,diphenylsilylbis(tetrahydroindenyl)hafnium dimethyl,methylphenylsilylbis(tetrahydroindenyl)hafnium dichloride,methylphenylsilylbis(tetrahydroindenyl)hafnium dimethyl,ethylenebis(tetrahydroindenyl)hafnium dichloride,ethylenebis(tetrahydroindenyl)hafnium dimethyl,methylenebis(tetrahydroindenyl)hafnium dichloride,methylenebis(tetrahydroindenyl)hafnium dimethyl,dimethylsilylbis(2-methylindenyl)zirconium dichloride,dimethylsilylbis(2-methylindenyl)zirconium dimethyl,diphenylsilylbis(2-methylindenyl)zirconium dichloride,diphenylsilylbis(2-methylindenyl)zirconium dimethyl,methylphenylsilylbis(2-methylindenyl)zirconium dichloride,methylphenylsilylbis(2-methylindenyl)zirconium dimethyl,ethylenebis(2-methylindenyl)zirconium dichloride,ethylenebis(2-methylindenyl)zirconium dimethyl,methylenebis(2-methylindenyl)zirconium dichloride,methylenebis(2-methylindenyl)zirconium dimethyl,dimethylsilylbis(2-methylindenyl)hafnium dichloride,dimethylsilylbis(2-methylindenyl)hafnium dimethyl,diphenylsilylbis(2-methylindenyl)hafnium dichloride,diphenylsilylbis(2-methylindenyl)hafnium dimethyl,methylphenylsilylbis(2-methylindenyl)hafnium dichloride,methylphenylsilylbis(2-methylindenyl)hafnium dimethyl,ethylenebis(2-methylindenyl)hafnium dichloride,ethylenebis(2-methylindenyl)hafnium dimethyl,methylenebis(2-methylindenyl)hafnium dichloride,methylenebis(2-methylindenyl)hafnium dimethyl,rac-dimethylsilylbis(2-methyl-4-phenylindenyl) zirconium dichloride,diphenylsilylbis(2-methyl-4-phenylindenyl)zirconium dimethyl,diphenylsilylbis(2-methyl-4-phenylindenyl)zirconium dichloride,diphenylsilylbis(2-methyl-4-phenylindenyl)zirconium dimethyl,methylphenylsilylbis(2-methyl-4-phenylindenyl)zirconium dichloride,methylphenylsilylbis(2-methyl-4-phenylindenyl)zirconium dimethyl,ethylenebis(2-methyl-4-phenylindenyl)zirconium dichloride,ethylenebis(2-methyl-4-phenylindenyl)zirconium dimethyl,methylenebis(2-methyl-4-phenylindenyl)zirconium dichloride,methylenebis(2-methyl-4-phenylindenyl)zirconium dimethyl,dimethylsilylbis(2-methyl-4-phenylindenyl)hafnium dichloride,dimethylsilylbis(2-methyl-4-phenylindenyl)hafnium dimethyl,diphenylsilylbis(2-methyl-4-phenylindenyl)hafnium dichloride,diphenylsilylbis(2-methyl-4-phenylindenyl)hafnium dimethyl,methylphenylsilylbis(2-methyl-4-phenylindenyl)hafnium dichloride,methylphenylsilylbis(2-methyl-4-phenylindenyl)hafnium dimethyl,ethylenebis(2-methyl-4-phenylindenyl)hafnium dichloride,ethylenebis(2-methyl-4-phenylindenyl)hafnium dimethyl,methylenebis(2-methyl-4-phenylindenyl)hafnium dichloride,methylenebis(2-methyl-4-phenylindenyl)hafnium dimethyl,dimethylsilylbis(4,7-dimethylindenyl)zirconium dichloride,dimethylsilylbis(4,7-dimethylindenyl)zirconium dimethyl,diphenylsilylbis(4,7-dimethylindenyl)zirconium dichloride,diphenylsilylbis(4,7-dimethylindenyl)zirconium dimethyl,methylphenylsilylbis(4,7-dimethylindenyl)zirconium dichloride,methylphenylsilylbis(4,7-dimethylindenyl)zirconium dimethyl,ethylenebis(4,7-dimethylindenyl)zirconium dichloride,ethylenebis(4,7-dimethylindenyl)zirconium dimethyl,methylenebis(4,7-dimethylindenyl)zirconium dichloride,methylenebis(4,7-dimethylindenyl)zirconium dimethyl,dimethylsilylbis(4,7-dimethylindenyl)hafnium dichloride,dimethylsilylbis(4,7-dimethylindenyl)hafnium dimethyl,diphenylsilylbis(4,7-dimethylindenyl)hafnium dichloride,diphenylsilylbis(4,7-dimethylindenyl)hafnium dimethyl,methylphenylsilylbis(4,7-dimethylindenyl)hafnium dichloride,methylphenylsilylbis(4,7-dimethylindenyl)hafnium dimethyl,ethylenebis(4,7-dimethylindenyl)hafnium dichloride,ethylenebis(4,7-dimethylindenyl)hafnium dimethyl,methylenebis(4,7-dimethylindenyl)hafnium dichloride,methylenebis(4,7-dimethylindenyl)hafnium dimethyl,dimethylsilylbis(2-methyl-4-napthylindenyl)zirconium dichloride,dimethylsilylbis(2-methyl-4-napthylindenyl)zirconium dimethyl,diphenylsilylbis(2-methyl-4-napthylindenyl)zirconium dichloride,diphenylsilylbis(2-methyl-4-napthylindenyl)zirconium dimethyl,methylphenylsilylbis(2-methyl-4-napthylindenyl)zirconium dichloride,methylphenylsilylbis(2-methyl-4-napthylindenyl)zirconium dimethyl,ethylenebis(2-methyl-4-napthylindenyl)zirconium dichloride,ethylenebis(2-methyl-4-napthylindenyl)zirconium dimethyl,methylenebis(2-methyl-4-napthylindenyl)zirconium dichloride,methylenebis(2-methyl-4-napthylindenyl)zirconium dimethyl,dimethylsilylbis(2-methyl-4-napthylindenyl)hafnium dichloride,dimethylsilylbis(2-methyl-4-napthylindenyl)hafnium dimethyl,diphenylsilylbis(2-methyl-4-napthylindenyl)hafnium dichloride,diphenylsilylbis(2-methyl-4-napthylindenyl)hafnium dimethyl,methylphenylsilylbis(2-methyl-4-napthylindenyl)hafnium dichloride,methylphenylsilylbis(2-methyl-4-napthylindenyl)hafnium dimethyl,ethylenebis(2-methyl-4-napthylindenyl)hafnium dichloride,ethylenebis(2-methyl-4-napthylindenyl)hafnium dimethyl,methylenebis(2-methyl-4-napthylindenyl)hafnium dichloride,methylenebis(2-methyl-4-napthylindenyl)hafnium dimethyl,dimethylsilylbis(2,3-dimethylcyclopentadienyl)zirconium dichloride,dimethylsilylbis(2,3-dimethylcyclopentadienyl)zirconium dimethyl,diphenylsilylbis(2,3-dimethylcyclopentadienyl)zirconium dichloride,diphenylsilylbis(2,3-dimethylcyclopentadienyl)zirconium dimethyl,methylphenylsilylbis(2,3-dimethylcyclopentadienyl)zirconium dichloride,methylphenylsilylbis(2,3-dimethylcyclopentadienyl)zirconium dimethyl,ethylenebis(2,3-dimethylcyclopentadienyl)zirconium dichloride,ethylenebis(2,3-dimethylcyclopentadienyl)zirconium dimethyl,methylenebis(2,3-dimethylcyclopentadienyl)zirconium dichloride,methylenebis(2,3-dimethylcyclopentadienyl)zirconium dimethyl,dimethylsilylbis(2,3-dimethylcyclopentadienyl)hafnium dichloride,dimethylsilylbis(2,3 dimethylcyclopentadienyl)hafnium dimethyl,diphenylsilylbis(2,3-dimethylcyclopentadienyl)hafnium dichloride,diphenylsilylbis(2,3-dimethylcyclopentadienyl)hafnium dimethyl,methylphenylsilylbis(2,3-dimethylcyclopentadienyl)hafnium dichloride,methylphenylsilylbis(2,3-dimethylcyclopentadienyl)hafnium dimethyl,ethylenebis(2,3-dimethylcyclopentadienyl)hafnium dichloride,ethylenebis(2,3-dimethylcyclopentadienyl)hafnium dimethyl,methylenebis(2,3-dimethylcyclopentadienyl)hafnium dichloride,methylenebis(2,3-dimethylcyclopentadienyl)hafnium dimethyl,dimethylsilylbis(3-trimethylsilylcyclopentadienyl)zirconium dichloride,dimethylsilylbis(3-trimethylsilylcyclopentadienyl)zirconium dimethyl,diphenylsilylbis(3-trimethylsilylcyclopentadienyl)zirconium dichloride,diphenylsilylbis(3-trimethylsilylcyclopentadienyl)zirconium dimethyl,methylphenylsilylbis(3-trimethylsilylcyclopentadienyl)zirconiumdichloride,methylphenylsilylbis(3-trimethylsilylcyclopentadienyl)zirconiumdimethyl, ethylenebis(3-trimethylsilylcyclopentadienyl)zirconiumdichloride, ethylenebis(3-trimethylsilylcyclopentadienyl)zirconiumdimethyl, methylenebis(3-trimethylsilylcyclopentadienyl)zirconiumdichloride, methylenebis(3-trimethylsilylcyclopentadienyl)zirconiumdimethyl, dimethylsilylbis(3-trimethylsilylcyclopentadienyl)hafniumdichloride, dimethylsilylbis(3-trimethylsilylcyclopentadienyl)hafniumdimethyl, diphenylsilylbis(3-trimethylsilylcyclopentadienyl)hafniumdichloride, diphenylsilylbis(3-trimethylsilylcyclopentadienyl)hafniumdimethyl, methylphenylsilylbis(3-trimethylsilylcyclopentadienyl)hafniumdichloride,methylphenylsilylbis(3-trimethylsilylcyclopentadienyl)hafnium dimethyl,ethylenebis(3-trimethylsilylcyclopentadienyl)hafnium dichloride,ethylenebis(3-trimethylsilylcyclopentadienyl)hafnium dimethyl,methylenebis(3-trimethylsilylcyclopentadienyl)hafnium dichloride,methylenebis(3-trimethylsilylcyclopentadienyl)hafnium dimethyl,dimethylsiladiyl(2-methyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconiumdichloride; dimethylsiladiyl(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;dimethylsiladiyl(2-n-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconiumdichloride; dimethylsiladiyl(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;dimethylsiladiyl(2-n-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconiumdichloride; dimethylsiladiyl(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;dimethylsiladiyl(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;dimethylsiladiyl(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;dimethylsiladiyl(2-methyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafniumdichloride; dimethylsiladiyl(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dichloride;dimethylsiladiyl(2-n-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafniumdimethylsiladiyl(2-iso-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafniumdichloride; dimethylsiladiyl(2-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dichloride;9-silafluorendiyl(2-methyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconiumdichloride; 9-silafluorendiyl(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;9-silafluorendiyl(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;9-silafluorendiyl(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;9-silafluorendiyl(2-n-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconiumdichloride; 9-silafluorendiyl(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;9-silafluorendiyl(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;9-silafluorendiyl(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;9-silafluorendiyl(2-methyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafniumdichloride; 9-silafluorendiyl(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dichloride;9-silafluorendiyl(2-n-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafniumdichloride; 9-silafluorendiyl(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dichloride;9-silafluorendiyl(2-n-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafniumdichloride; 9-silafluorendiyl(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dichloride;9-silafluorendiyl(2-sec-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafniumdichloride; 9-silafluorendiyl(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dichloride;dimethylsiladiyl(2-methyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconiumdimethyl; dimethylsiladiyl(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;dimethylsiladiyl(2-n-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconiumdimethyl; dimethylsiladiyl(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;dimethylsiladiyl(2-n-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconiumdimethyl; dimethylsiladiyl(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;dimethylsiladiyl(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;dimethylsiladiyl(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;dimethylsiladiyl(2-methyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafniumdimethyl; dimethylsiladiyl(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl;dimethylsiladiyl(2-n-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafniumdimethyl dimethylsiladiyl(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl;dimethylsiladiyl(2-n-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafniumdimethyl; dimethylsiladiyl(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl;dimethylsiladiyl(2-sec-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafniumdimethyl; dimethylsiladiyl(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl;9-silafluorendiyl(2-methyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconiumdimethyl; 9-silafluorendiyl(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;9-silafluorendiyl(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;9-silafluorendiyl(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;9-silafluorendiyl(2-n-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconiumdimethyl; 9-silafluorendiyl(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;9-silafluorendiyl(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;9-silafluorendiyl(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;9-silafluorendiyl(2-methyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafniumdimethyl; 9-silafluorendiyl(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl;9-silafluorendiyl(2-n-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafniumdimethyl; 9-silafluorendiyl(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl;9-silafluorendiyl(2-n-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafniumdimethyl; 9-silafluorendiyl(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl;9-silafluorendiyl(2-sec-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafniumdimethyl; 9-silafluorendiyl(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl;dimethylsiladiyl(2-methyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;dimethylsiladiyl(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;dimethylsiladiyl(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;dimethylsiladiyl(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;dimethylsiladiyl(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;dimethylsiladiyl(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;dimethylsiladiyl(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;dimethylsiladiyl(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;dimethylsiladiyl(2-methyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;dimethylsiladiyl(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;dimethylsiladiyl(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;dimethylsiladiyl(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;dimethylsiladiyl(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;dimethylsiladiyl(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;dimethylsiladiyl(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;dimethylsiladiyl(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;9-silafluorendiyl(2-methyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;dimethylsiladiyl(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;9-silafluorendiyl(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;9-silafluorendiyl(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;9-silafluorendiyl(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;9-silafluorendiyl(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;9-silafluorendiyl(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;9-silafluorendiyl(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;9-silafluorendiyl(2-methyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;9-silafluorendiyl(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;9-silafluorendiyl(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;9-silafluorendiyl(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;9-silafluorendiyl(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;9-silafluorendiyl(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;9-silafluorendiyl(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;9-silafluorendiyl(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;dimethylsiladiyl(2-methyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;dimethylsiladiyl(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;dimethylsiladiyl(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;dimethylsiladiyl(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;dimethylsiladiyl(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;dimethylsiladiyl(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;dimethylsiladiyl(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;dimethylsiladiyl(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;dimethylsiladiyl(2-methyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;dimethylsiladiyl(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;dimethylsiladiyl(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;dimethylsiladiyl(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;dimethylsiladiyl(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;dimethylsiladiyl(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;dimethylsiladiyl(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;dimethylsiladiyl(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;9-silafluorendiyl(2-methyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;dimethylsiladiyl(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;9-silafluorendiyl(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;9-silafluorendiyl(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;9-silafluorendiyl(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;9-silafluorendiyl(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;9-silafluorendiyl(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;9-silafluorendiyl(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;9-silafluorendiyl(2-methyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;9-silafluorendiyl(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;9-silafluorendiyl(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;9-silafluorendiyl(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;9-silafluorendiyl(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;9-silafluorendiyl(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;9-silafluorendiyl(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;9-silafluorendiyl(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;dimethylsiladiyl(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;dimethylsiladiyl(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloridedimethylsiladiyl(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;dimethylsiladiyl(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;dimethylsiladiyl(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;dimethylsiladiyl(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;dimethylsiladiyl(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;dimethylsiladiyl(2-ethyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafniumdichloride; dimethylsiladiyl(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride;dimethylsiladiyl(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride;dimethylsiladiyl(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride;dimethylsiladiyl(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride;dimethylsiladiyl(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride;dimethylsiladiyl(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride;9-silafluorendiyl(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;9-silafluorendiyl(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;9-silafluorendiyl(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;9-silafluorendiyl(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;9-silafluorendiyl(2-iso-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;9-silafluorendiyl(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;9-silafluorendiyl(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;9-silafluorendiyl(2-ethyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafniumdichloride; 9-silafluorendiyl(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride;9-silafluorendiyl(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride;9-silafluorendiyl(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride;9-silafluorendiyl(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride;9-silafluorendiyl(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride;9-silafluorendiyl(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride;dimethylsiladiyl(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;dimethylsiladiyl(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyldimethylsiladiyl(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;dimethylsiladiyl(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;dimethylsiladiyl(2-isobutyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;dimethylsiladiyl(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;dimethylsiladiyl(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;dimethylsiladiyl(2-ethyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafniumdimethyl; dimethylsiladiyl(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl;dimethylsiladiyl(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl;dimethylsiladiyl(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl;dimethylsiladiyl(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;dimethylsiladiyl(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;dimethylsiladiyl(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;9-silafluorendiyl(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;9-silafluorendiyl(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;9-silafluorendiyl(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;9-silafluorendiyl(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;9-silafluorendiyl(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;9-silafluorendiyl(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;9-silafluorendiyl(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;9-silafluorendiyl(2-ethyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafniumdimethyl; 9-silafluorendiyl(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl;9-silafluorendiyl(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl;9-silafluorendiyl(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl;9-silafluorendiyl(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl;9-silafluorendiyl(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl;9-silafluorendiyl(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl;dimethylsiladiyl(2-methyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconiumdichloride; dimethylsiladiyl(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;dimethylsiladiyl(2-n-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconiumdichloride; dimethylsiladiyl(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;dimethylsiladiyl(2-n-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconiumdichloride; dimethylsiladiyl(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;dimethylsiladiyl(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;dimethylsiladiyl(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;dimethylsiladiyl(2-methyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafniumdichloride; dimethylsiladiyl(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride;dimethylsiladiyl(2-n-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafniumdichloride; dimethylsiladiyl(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride;dimethylsiladiyl(2-n-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafniumdichloride; dimethylsiladiyl(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride;dimethylsiladiyl(2-sec-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafniumdichloride; dimethylsiladiyl(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride;9-silafluorendiyl(2-methyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconiumdichloride; 9-silafluorendiyl(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;9-silafluorendiyl(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;9-silafluorendiyl(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;9-silafluorendiyl(2-n-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconiumdichloride; 9-silafluorendiyl(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;9-silafluorendiyl(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;9-silafluorendiyl(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;9-silafluorendiyl(2-methyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafniumdichloride; 9-silafluorendiyl(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride;9-silafluorendiyl(2-n-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafniumdichloride; 9-silafluorendiyl(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride;9-silafluorendiyl(2-n-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafniumdichloride; 9-silafluorendiyl(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride;9-silafluorendiyl(2-sec-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafniumdichloride; 9-silafluorendiyl(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride;dimethylsiladiyl(2-methyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconiumdimethyl; dimethylsiladiyl(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;dimethylsiladiyl(2-n-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconiumdimethyl; dimethylsiladiyl(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;dimethylsiladiyl(2-n-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconiumdimethyl; dimethylsiladiyl(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;dimethylsiladiyl(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;dimethylsiladiyl(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;dimethylsiladiyl(2-methyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafniumdimethyl; dimethylsiladiyl(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl;dimethylsiladiyl(2-n-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafniumdimethyl; dimethylsiladiyl(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl;dimethylsiladiyl(2-n-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafniumdimethyl; dimethylsiladiyl(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl;dimethylsiladiyl(2-sec-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafniumdimethyl; dimethylsiladiyl(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl;9-silafluorendiyl(2-methyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconiumdimethyl; 9-silafluorendiyl(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;9-silafluorendiyl(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;9-silafluorendiyl(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;9-silafluorendiyl(2-n-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconiumdimethyl; 9-silafluorendiyl(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;9-silafluorendiyl(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;9-silafluorendiyl(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;9-silafluorendiyl(2-methyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafniumdimethyl; 9-silafluorendiyl(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride;9-silafluorendiyl(2-n-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafniumdimethyl; 9-silafluorendiyl(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl;9-silafluorendiyl(2-n-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafniumdimethyl; 9-silafluorendiyl(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl;9-silafluorendiyl(2-sec-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafniumdimethyl; 9-silafluorendiyl(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl;dimethylsiladiyl(2-methyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylsiladiyl(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylsiladiyl(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylsiladiyl(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylsiladiyl(2-n-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylsiladiyl(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylsiladiyl(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η-⁴-1,4-diphenyl-1,3-butadiene;dimethylsiladiyl(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylsiladiyl(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylsiladiyl(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylsiladiyl(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylsiladiyl(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylsiladiyl(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylsiladiyl(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylsiladiyl(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylsiladiyl(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylsiladiyl(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylsiladiyl(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)η⁴-1,4-diphenyl-1,3-butadiene;dimethylsiladiyl(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylsiladiyl(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylsiladiyl(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylsiladiyl(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylsiladiyl(2-methyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylsiladiyl(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylsiladiyl(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylsiladiyl(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylsiladiyl(2-n-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylsiladiyl(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylsiladiyl(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylsiladiyl(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;9-silafluorendiyl(2-methyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;9-silafluorendiyl(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;9-silafluorendiyl(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;9-silafluorendiyl(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;9-silafluorendiyl(2-n-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;9-silafluorendiyl(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;9-silafluorendiyl(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;9-silafluorendiyl(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;9-silafluorendiyl(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;9-silafluorendiyl(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;9-silafluorendiyl(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;9-silafluorendiyl(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;9-silafluorendiyl(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;9-silafluorendiyl(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;9-silafluorendiyl(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;9-silafluorendiyl(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;9-silafluorendiyl(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;9-silafluorendiyl(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)η⁴-1,4-diphenyl-1,3-butadiene;9-silafluorendiyl(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;9-silafluorendiyl(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;9-silafluorendiyl(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;9-silafluorendiyl(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;9-silafluorendiyl(2-methyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;9-silafluorendiyl(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;9-silafluorendiyl(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;9-silafluorendiyl(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;9-silafluorendiyl(2-n-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;9-silafluorendiyl(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;9-silafluorendiyl(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;9-silafluorendiyl(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-methyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;dimethylamidoborane(2-ethyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconiumdichloride; dimethylamidoborane(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;dimethylamidoborane(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;dimethylamidoborane(2-n-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;dimethylamidoborane(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;dimethylamidoborane(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;dimethylamidoborane(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;dimethylamidoborane(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;dimethylamidoborane(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;dimethylamidoborane(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;dimethylamidoborane(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;dimethylamidoborane(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;dimethylamidoborane(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;dimethylamidoborane(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;dimethylamidoborane(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;dimethylamidoborane(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloridedimethylamidoborane(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;dimethylamidoborane(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;dimethylamidoborane(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;dimethylamidoborane(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;dimethylamidoborane(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;dimethylamidoborane(2-methyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;dimethylamidoborane(2-ethyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconiumdichloride; dimethylamidoborane(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;dimethylamidoborane(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;dimethylamidoborane(2-n-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;dimethylamidoborane(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;dimethylamidoborane(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;dimethylamidoborane(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;dimethylamidoborane(2-methyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-n-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-methyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-n-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;dimethylamidoborane(2-methyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;dimethylamidoborane(2-ethyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconiumdimethyl; dimethylamidoborane(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;dimethylamidoborane(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;dimethylamidoborane(2-n-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;dimethylamidoborane(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;dimethylamidoborane(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;dimethylamidoborane(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;dimethylamidoborane(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;dimethylamidoborane(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;dimethylamidoborane(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;dimethylamidoborane(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;dimethylamidoborane(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;dimethylamidoborane(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;dimethylamidoborane(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;dimethylamidoborane(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;dimethylamidoborane(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyldimethylamidoborane(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;dimethylamidoborane(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;dimethylamidoborane(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;dimethylamidoborane(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;dimethylamidoborane(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;dimethylamidoborane(2-methyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;dimethylamidoborane(2-ethyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconiumdimethyl; dimethylamidoborane(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;dimethylamidoborane(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;dimethylamidoborane(2-n-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;dimethylamidoborane(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;dimethylamidoborane(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;dimethylamidoborane(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;diisopropylamidoborane(2-methyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;diisopropylamidoborane(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;diisopropylamidoborane(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;diisopropylamidoborane(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;diisopropylamidoborane(2-n-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;diisopropylamidoborane(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;diisopropylamidoborane(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;diisopropylamidoborane(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;diisopropylamidoborane(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;diisopropylamidoborane(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;diisopropylamidoborane(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;diisopropylamidoborane(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;diisopropylamidoborane(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;diisopropylamidoborane(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;diisopropylamidoborane(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;diisopropylamidoborane(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;diisopropylamidoborane(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloridediisopropylamidoborane(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;diisopropylamidoborane(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;diisopropylamidoborane(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;diisopropylamidoborane(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;diisopropylamidoborane(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;diisopropylamidoborane(2-methyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;diisopropylamidoborane(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;diisopropylamidoborane(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;diisopropylamidoborane(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;diisopropylamidoborane(2-n-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;diisopropylamidoborane(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;diisopropylamidoborane(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;diisopropylamidoborane(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;diisopropylamidoborane(2-methyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;diisopropylamidoborane(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;diisopropylamidoborane(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;diisopropylamidoborane(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;diisopropylamidoborane(2-n-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;diisopropylamidoborane(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;diisopropylamidoborane(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;diisopropylamidoborane(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;diisopropylamidoborane(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;diisopropylamidoborane(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;diisopropylamidoborane(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;diisopropylamidoborane(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;diisopropylamidoborane(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;diisopropylamidoborane(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;diisopropylamidoborane(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;diisopropylamidoborane(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;diisopropylamidoborane(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;diisopropylamidoborane(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)η⁴-1,4-diphenyl-1,3-butadiene;diisopropylamidoborane(2-n-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂⁴-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;diisopropylamidoborane(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;diisopropylamidoborane(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;diisopropylamidoborane(2-methyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;diisopropylamidoborane(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;diisopropylamidoborane(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;diisopropylamidoborane(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;diisopropylamidoborane(2-n-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;diisopropylamidoborane(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;diisopropylamidoborane(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;diisopropylamidoborane(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;diisopropylamidoborane(2-methyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;diisopropylamidoborane(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;diisopropylamidoborane(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;diisopropylamidoborane(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;diisopropylamidoborane(2-n-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;diisopropylamidoborane(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;diisopropylamidoborane(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;diisopropylamidoborane(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;diisopropylamidoborane(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;diisopropylamidoborane(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;diisopropylamidoborane(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;diisopropylamidoborane(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;diisopropylamidoborane(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;diisopropylamidoborane(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;diisopropylamidoborane(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;diisopropylamidoborane(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;diisopropylamidoborane(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyldiisopropylamidoborane(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;diisopropylamidoborane(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;diisopropylamidoborane(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;diisopropylamidoborane(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;diisopropylamidoborane(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;diisopropylamidoborane(2-methyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;diisopropylamidoborane(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;diisopropylamidoborane(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;diisopropylamidoborane(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;diisopropylamidoborane(2-n-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;diisopropylamidoborane(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;diisopropylamidoborane(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;diisopropylamidoborane(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;bis(trimethylsilyl)amidoborane(2-methyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;bis(trimethylsilyl)amidoborane(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;bis(trimethylsilyl)amidoborane(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;bis(trimethylsilyl)amidoborane(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;bis(trimethylsilyl)amidoborane(2-n-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;bis(trimethylsilyl)amidoborane(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;bis(trimethylsilyl)amidoborane(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;bis(trimethylsilyl)amidoborane(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;bis(trimethylsilyl)amidoborane(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;bis(trimethylsilyl)amidoborane(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;bis(trimethylsilyl)amidoborane(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;bis(trimethylsilyl)amidoborane(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;bis(trimethylsilyl)amidoborane(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;bis(trimethylsilyl)amidoborane(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;bis(trimethylsilyl)amidoborane(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;bis(trimethylsilyl)amidoborane(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;bis(trimethylsilyl)amidoborane(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloridebis(trimethylsilyl)amidoborane(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;bis(trimethylsilyl)amidoborane(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;bis(trimethylsilyl)amidoborane(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;bis(trimethylsilyl)amidoborane(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;bis(trimethylsilyl)amidoborane(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;bis(trimethylsilyl)amidoborane(2-methyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;bis(trimethylsilyl)amidoborane(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;bis(trimethylsilyl)amidoborane(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;bis(trimethylsilyl)amidoborane(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;bis(trimethylsilyl)amidoborane(2-n-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;bis(trimethylsilyl)amidoborane(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;bis(trimethylsilyl)amidoborane(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;bis(trimethylsilyl)amidoborane(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;bis(trimethylsilyl)amidoborane(2-methyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;bis(trimethylsilyl)amidoborane(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;bis(trimethylsilyl)amidoborane(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;bis(trimethylsilyl)amidoborane(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;bis(trimethylsilyl)amidoborane(2-n-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;bis(trimethylsilyl)amidoborane(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;bis(trimethylsilyl)amidoborane(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;bis(trimethylsilyl)amidoborane(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;bis(trimethylsilyl)amidoborane(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;bis(trimethylsilyl)amidoborane(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;bis(trimethylsilyl)amidoborane(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;bis(trimethylsilyl)amidoborane(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;bis(trimethylsilyl)amidoborane(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;bis(trimethylsilyl)amidoborane(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;bis(trimethylsilyl)amidoborane(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;bis(trimethylsilyl)amidoborane(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;bis(trimethylsilyl)amidoborane(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;bis(trimethylsilyl)amidoborane(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)η⁴-1,4-diphenyl-1,3-butadiene;bis(trimethylsilyl)amidoborane(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;bis(trimethylsilyl)amidoborane(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;bis(trimethylsilyl)amidoborane(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;bis(trimethylsilyl)amidoborane(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;bis(trimethylsilyl)amidoborane(2-methyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;bis(trimethylsilyl)amidoborane(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;bis(trimethylsilyl)amidoborane(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;bis(trimethylsilyl)amidoborane(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;bis(trimethylsilyl)amidoborane(2-n-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;bis(trimethylsilyl)amidoborane(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;bis(trimethylsilyl)amidoborane(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;bis(trimethylsilyl)amidoborane(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;bis(trimethylsilyl)amidoborane(2-methyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;bis(trimethylsilyl)amidoborane(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;bis(trimethylsilyl)amidoborane(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;bis(trimethylsilyl)amidoborane(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;bis(trimethylsilyl)amidoborane(2-n-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;bis(trimethylsilyl)amidoborane(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;bis(trimethylsilyl)amidoborane(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;bis(trimethylsilyl)amidoborane(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;bis(trimethylsilyl)amidoborane(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;bis(trimethylsilyl)amidoborane(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;bis(trimethylsilyl)amidoborane(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;bis(trimethylsilyl)amidoborane(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;bis(trimethylsilyl)amidoborane(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;bis(trimethylsilyl)amidoborane(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;bis(trimethylsilyl)amidoborane(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;bis(trimethylsilyl)amidoborane(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;bis(trimethylsilyl)amidoborane(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethylbis(trimethylsilyl)amidoborane(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;bis(trimethylsilyl)amidoborane(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;bis(trimethylsilyl)amidoborane(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;bis(trimethylsilyl)amidoborane(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;bis(trimethylsilyl)amidoborane(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;bis(trimethylsilyl)amidoborane(2-methyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;bis(trimethylsilyl)amidoborane(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;bis(trimethylsilyl)amidoborane(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;bis(trimethylsilyl)amidoborane(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;bis(trimethylsilyl)amidoborane(2-n-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;bis(trimethylsilyl)amidoborane(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;bis(trimethylsilyl)amidoborane(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; andbis(trimethylsilyl)amidoborane(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; and the like.

[0325] The most preferred species are the racemic versions of:dimethylsilylbis(indenyl)zirconium dichloride,dimethylsilylbis(indenyl)zirconium dimethyl,ethylenebis(indenyl)zirconium dichloride, ethylenebis(indenyl)zirconiumdimethyl, dimethylsilylbis(tetrahydorindenyl)zirconium dichloride,dimethylsilylbis(tetrahydorindenyl)zirconium dimethyl,ethylenebis(tetrahydorindenyl)zirconium dichloride,ethylenebis(tetrahydorindenyl)zirconium dimethyl,dimethylsilylbis(2-methylindenyl)zirconium dichloride,dimethylsilylbis(2-methylindenyl)zirconium dimethyl,ethylenebis(2-methylindenyl)zirconium dichloride,ethylenebis(2-methylindenyl)zirconium dimethyl,dimethylsilylbis(2-methyl-4 phenylindenyl)zirconium dichloride,dimethylsilylbis(2-methyl-4-phenylindenyl)zirconium dimethyl,ethylenebis(2-methyl-4-phenylindenyl)zirconium dichloride,ethylenebis(2-methyl-4-phenylindenyl)zirconium dimethyl,dimethylsilylbis(4,7-dimethylindenyl)zirconium dichloride,dimethylsilylbis(4,7-dimethylindenyl)zirconium dimethyl,ethylenebis(4,7-dimethylindenyl)zirconium dichloride,ethylenebis(4,7-dimethylindenyl)zirconium dimethyl,dimethylsilylbis(indenyl)hafnium dichloride,dimethylsilylbis(indenyl)hafnium dimethyl, ethylenebis(indenyl)hafniumdichloride, ethylenebis(indenyl)hafnium dimethyl,dimethylsilylbis(tetrahydorindenyl)hafnium dichloride,dimethylsilylbis(tetrahydorindenyl)hafnium dimethyl,ethylenebis(tetrahydorindenyl)hafnium dichloride,ethylenebis(tetrahydorindenyl)hafnium dimethyl,dimethylsilylbis(2-methylindenyl)hafnium dichloride,dimethylsilylbis(2-methylindenyl)hafnium dimethyl,ethylenebis(2-methylindenyl)hafnium dichloride,ethylenebis(2-methylindenyl)hafnium dimethyl,dimethylsilylbis(2-methyl-4-phenylindenyl)hafnium dichloride,dimethylsilylbis(2-methyl-4-phenylindenyl)hafnium dimethyl,ethylenebis(2-methyl-4-phenylindenyl)hafnium dichloride,ethylenebis(2-methyl-4-phenylindenyl)hafnium dimethyl,dimethylsilylbis(4,7-dimethylindenyl)hafnium dichloride,dimethylsilylbis(4,7-dimethylindenyl)hafnium dimethyl,ethylenebis(4,7-dimethylindenyl)hafnium dichloride, andethylenebis(4,7-dimethylindenyl)hafnium dimethyl.

[0326] Similarly, metallocene precursors providing tacticity controlexist where (A-Cp) is (Cp) (Cp*), both Cp and Cp* having substituents onthe cyclopentadienyl rings of sufficient steric bulk to restrictrotation of the cyclopentadienyl ligands such that the aforementionedsymmetry conditions are satisfied. Preferable chiral racemicmetallocenes of this type includebis(tricyclo[5.2.1.0^(2,6)]deca-2,5-dienyl)zirconium and -hafniumdimethyl,bis((1R)-9,9-dimethyltricyclo[6.1.1.0^(2,6)]deca-2,5-dienyl)zirconiumdimethyl, bis(tricyclo[5.2.1.0^(2,6)]deca-2,5,8-trienyl)zirconiumdimethyl, bis(tricyclo[5.2.2.0^(2,6) ]undeca-2,5,8-trienyl)zirconium and-hafnium dimethyl andbis((1R,8R)-7,7,9,9-tetramethyl[6.1.1.0^(2,6)]deca-2,5-dienyl)zirconiumand -hafnium dimethyl.

[0327] Preferably metallocene precursors for the production ofpoly-α-olefins having enhanced syndiotactic character are also those ofEquation 17 where S″ are independently chosen such that the twoCp-ligands have substantially different steric bulk. In order to producea syndiotactic polymer the pattern of the groups substituted on theCp-rings is important. Thus, by steric difference or stericallydifferent as used herein, it is intended to imply a difference betweenthe steric characteristics of the Cp and Cp* rings that renders each tobe symmetrical With respect to the A bridging group but different withrespect to each other that controls the approach of each successivemonomer unit that is added to the polymer chain. The steric differencebetween the Cp and Cp* rings act to block the approaching monomer from arandom approach such that the monomer is added to the polymer chain inthe syndiotactic configuration.

[0328] Preferable metallocene precursors for the production ofsyndiotactic polymers are those of Equation 17 where S″ areindependently chosen such that 1) the steric difference between the twoCp-ligands is maximized and 2) there remains a plane of symmetry throughthe metal center and the C₁ and C_(1′) carbon atoms of the Cp-rings inEquation 17. Thus, complexes such as Me₂C(η⁵-C₅H₄)(1-fluorenyl)MMe₂(where M=Ti, Zr, or Hf) which possess this symmetry are preferred, andgenerally produce the syndiotactic polymer with higher degrees ofstereoregularity than similar, but less symmetric, systems.Additionally, in the above equation, 1-fluorenyl may be substituted with3,8-di-t-butylfluorenyl, octahydrofluorenyl or3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,10,10,11,11-octahydrodibenzo[b,h]fluorene.Because pre-catalysts of this type often lose there ability to controlthe stereoregularity of the polymer under high temperature reactionconditions, to insure higher crystallinity in the material requiresusing these catalysts at lower reactor temperatures, preferably attemperatures below 80° C.

[0329] Preferred catalysts that can produce the lower molecular weightisotactic polypropylene are those described in U.S. Pat. No. 5,120,867,which is incorporated by reference herein. Any mixture of catalysts,including supported catalysts, which can be used together in a singlereactor or in a series reactor configuration, that can also produce thedesired polypropylene can be utilized in this invention to produce thein situ blend. Preferred catalysts include cyclopentadienyl transitionmetals compounds and derivatives thereof used in conjunction with analumoxane and/or a compatible non-coordinating anion. Additionalpreferred catalsyts that produce crystalline polypropylene are discussedin Chem. rev. 2000, 100, 1253-1345, which is incorporated by referenceherein.

[0330] The preferred choice of transition metal component for theamorphous polymer fraction is the mono-cyclopentadienyl transition metalcomponent of equation 10 where y is equal to 1. This preferred componentis illustrated in equation 18:

[0331] where A′, J, S′, X₁, X₂, L′, z and w as are previously definedand M is titanium. Substituent S″_(v) is defined to be the same as S″ inequation 10 where the subscript “v” denotes the carbon atom on thecyclopentadienyl ring to which the substituent is bonded and where therecan be zero, two or four substituents, S″, on the cyclopentadienyl ringprovided that the cyclopentadienyl ring is symmetrically substituted.Symmetrically substituted is defined to mean that the cyclopentadienylring is substituted in the 2 and 5 positions and/or 3 and 4 positionswith S″ groups that are of approximately of the same steric bulk.Typically the size of these S″ groups are within 2 carbons of eachother. Thus a cyclopentadienyl substituted at the 2 and the 5 positionswith methyl and ethyl respectively, or substituted at the 3 and the 4positions with hexyl and octyl, respectively, would be consideredsymmetric. Likewise, the cyclopentadienyl ring may be substituted at allfour sites with S″ groups and be considered symmetric as long as each ofthe symmetrical pairs are of similar steric bulk. Additionally, twoadjacent S″-groups in the 3 and 4 position may be linked to form a ringprovided that the new ring is also symmetrically substituted.

[0332] Catalyst systems of this type are known to impart 2,1-mistakeswhen incorporating C3 and higher α-olefins. The pre-catalysts where S′is bonded to the nitrogen ligand (J) via a 3° carbon (for example whenS′ is tert-butyl or 1-adamantyl) have fewer 2,1-mistakes then when S′ isbonded to the nitrogen ligand (J) via a 1° carbon (for example when S′is n-butyl, methyl, or benzyl) or 2° carbon (for example when S′ iscyclododecyl, cyclohexyl, or sec-butyl). The 2,1-mistakes in the polymerbackbone impart (CH₂)₂ units that can be beneficial to the polymerproperties. Polymers of this type, the characterization of such polymersand the catalyst systems used to produce such polymers are described inU.S. Pat. No. 5,723,560 and is incorporated herein by reference. LowerMw versions of such polymers can be produced by changing processcondition, for example, by increasing reactor temperature.

[0333] Preferred mono-cyclopentadienyl transition metal compounds which,according to the present invention, provide catalyst systems which arespecific to the production of atactic poly-α-olefins include:dimethylsilyl(tetramethylcyclopentadienyl)(cyclododecylamido)titaniumdichloride,dimethylsilyl(tetramethylcyclopentadienyl)(cyclohexylamido)titaniumdichloride,dimethylsilyl(tetramethylcyclopentadienyl)(1-adamantylamido)titaniumdichloride,dimethylsilyl(tetramethylcyclopentadienyl)(t-butylamido)titaniumdichloride,dimethylsilyl(tetramethylcyclopentadienyl)(s-butylamido)titaniumdichloride,dimethylsilyl(tetramethylcyclopentadienyl)(n-butylamido)titaniumdichloride,dimethylsilyl(tetramethylcyclopentadienyl)(exo-2-norbornylamido)titaniumdichloride,diethylsilyl(tetramethylcyclopentadienyl)(cyclododecylamido)titaniumdichloride,diethylsilyl(tetramethylcyclopentadienyl)(exo-2-norbornylamido)titaniumdichloride,diethylsilyl(tetramethylcyclopentadienyl)(cyclohexylamido)titaniumdichloride,diethylsilyl(tetramethylcyclopentadienyl)(1-adamantylamido)titaniumdichloride,diethylsilyl(tetramethylcyclopentadienyl)(t-butylamido)titaniumdichloride,methylene(tetramethylcyclopentadienyl)(cyclododecylamido)titaniumdichloride,methylene(tetramethylcyclopentadienyl)(exo-2-norbornylamido)titaniumdichloride,methylene(tetramethylcyclopentadienyl)(cyclohexylamido)titaniumdichloride,methylene(tetramethylcyclopentadienyl)(1-adamantylamido)titaniumdichloride, methylene(tetramethylcyclopentadienyl)(t-butylamido)titaniumdichloride,ethylene(tetramethylcyclopentadienyl)(cyclododecylamido)titaniumdichloride,ethylene(tetramethylcyclopentadienyl)(exo-2-norbornylamido)titaniumdichloride,ethylene(tetramethylcyclopentadienyl)(cyclohexylamido)titaniumdichloride,ethylene(tetramethylcyclopentadienyl)(1-adamantylamido)titaniumdichloride, ethylene(tetramethylcyclopentadienyl)(t-butylamido)titaniumdichloride,dimethylsilyl(tetramethylcyclopentadienyl)(cyclododecylamido)titaniumdimethyl,dimethylsilyl(tetramethylcyclopentadienyl)(cyclohexylamido)titaniumdimethyl,dimethylsilyl(tetramethylcyclopentadienyl)(1-adamantylamido)titaniumdimethyl,dimethylsilyl(tetramethylcyclopentadienyl)(t-butylamido)titaniumdimethyl,dimethylsilyl(tetramethylcyclopentadienyl)(s-butylamido)titaniumdimethyl,dimethylsilyl(tetramethylcyclopentadienyl)(n-butylamido)titaniumdimethyl,dimethylsilyl(tetramethylcyclopentadienyl)(exo-2-norbornylamido)titaniumdimethyl,diethylsilyl(tetramethylcyclopentadienyl)(cyclododecylamido)titaniumdimethyl,diethylsilyl(tetramethylcyclopentadienyl)(exo-2-norbornylamido)titaniumdimethyl,diethylsilyl(tetramethylcyclopentadienyl)(cyclohexylamido)titaniumdimethyl,diethylsilyl(tetramethylcyclopentadienyl)(1-adamantylamido)titaniumdimethyl,diethylsilyl(tetramethylcyclopentadienyl)(t-butylamido)titaniumdimethyl,methylene(tetramethylcyclopentadienyl)(cyclododecylamido)titaniumdimethyl,methylene(tetramethylcyclopentadienyl)(exo-2-norbornylamido)titaniumdimethyl,methylene(tetramethylcyclopentadienyl)(cyclohexylamido)titaniumdimethyl,methylene(tetramethylcyclopentadienyl)(1-adamantylamido)titaniumdimethyl, methylene(tetramethylcyclopentadienyl)(t-butylamido)titaniumdimethyl,ethylene(tetramethylcyclopentadienyl)(cyclododecylamido)titaniumdimethyl,ethylene(tetramethylcyclopentadienyl)(exo-2-norbornylamido)titaniumdimethyl, ethylene(tetramethylcyclopentadienyl)(cyclohexylamido)titaniumdimethyl,ethylene(tetramethylcyclopentadienyl)(1-adamantylamido)titaniumdimethyl, ethylene(tetramethylcyclopentadienyl)(t-butylamido)titaniumdimethyl,dimethylsilyl(2,5-dimethylcyclopentadienyl)(cyclododecylamido)titaniumdichloride,dimethylsilyl(2,5-dimethylcyclopentadienyl)(exo-2-norbornylamido)titaniumdichloride,dimethylsilyl(2,5-dimethylcyclopentadienyl)(cyclohexylamido)titaniumdichloride,dimethylsilyl(2,5-dimethylcyclopentadienyl)(1-adamantylamido)titaniumdichloride,dimethylsilyl(2,5-dimethylcyclopentadienyl)(t-butylamido)titaniumdichloride,dimethylsilyl(3,4-dimethylcyclopentadienyl)(cyclododecylamido)titaniumdichloride,dimethylsilyl(3,4-dimethylcyclopentadienyl)(exo-2-norbornylamido)titaniumdichloride,dimethylsilyl(3,4-dimethylcyclopentadienyl)(cyclohexylamido)titaniumdichloride,dimethylsilyl(3,4-dimethylcyclopentadienyl)(1-adamantylamido)titaniumdichloride,dimethylsilyl(3,4-dimethylcyclopentadienyl)(t-butylamido)titaniumdichloride,dimethylsilyl(2-ethyl-5-methylcyclopentadienyl)(cyclododecylamido)titaniumdichloride,dimethylsilyl(2-ethyl-5-methylcyclopentadienyl)(exo-2-norbornylamido)titaniumdichloride,dimethylsilyl(2-ethyl-5-methylcyclopentadienyl)(cyclohexylamido)titaniumdichloride,dimethylsilyl(2-ethyl-5-methylcyclopentadienyl)(1-adamantylamido)titaniumdichloride,dimethylsilyl(2-ethyl-5-methylcyclopentadienyl)(t-butylamido)titaniumdichloride,dimethylsilyl(3-ethyl-4-methylcyclopentadienyl)(cyclododecylamido)titaniumdichloride,dimethylsilyl(3-ethyl-4-methylcyclopentadienyl)(exo-2-norbornylamido)titaniumdichloride,dimethylsilyl(3-ethyl-4-methylcyclopentadienyl)(cyclohexylamido)titaniumdichloride,dimethylsilyl(3-ethyl-4-methylcyclopentadienyl)(1-adamantylamido)titaniumdichloride,dimethylsilyl(3-ethyl-4-methylcyclopentadienyl)(t-butylamido)titaniumdichloride,dimethylsilyl(2-ethyl-3-hexyl-5-methyl-4-octylcyclopentadienyl)(cyclododecylamido)titaniumdichloride,dimethylsilyl(2-ethyl-3-hexyl-5-methyl-4-octylcyclopentadienyl)(exo-2-norbornylamido)titaniumdichloride,dimethylsilyl(2-ethyl-3-hexyl-5-methyl-4-octylcyclopentadienyl)(cyclohexylamido)titaniumdichloride,dimethylsilyl(2-ethyl-3-hexyl-5-methyl-4-octylcyclopentadienyl)(1-adamantylamido)titaniumdichloride,dimethylsilyl(2-ethyl-3-hexyl-5-methyl-4-octylcyclopentadienyl)(t-butylamido)titaniumdichloride,dimethylsilyl(2-tetrahydroindenyl)(cyclododecylamido)titaniumdichloride,dimethylsilyl(2-tetrahydroindenyl)(exo-2-norbornylamido)titaniumdichloride, dimethylsilyl(2-tetrahydroindenyl)(cyclohexylamido)titaniumdichloride, dimethylsilyl(2-tetrahydroindenyl)(1-adamantylamido)titaniumdichloride, dimethylsilyl(2-tetrahydroindenyl)(t-butylamido)titaniumdichloride,dimethylsilyl(2,5-dimethylcyclopentadienyl)(cyclododecylamido)titaniumdimethyl,dimethylsilyl(2,5-dimethylcyclopentadienyl)(exo-2-norbornylamido)titaniumdimethyl,dimethylsilyl(2,5-dimethylcyclopentadienyl)(cyclohexylamido)titaniumdimethyl,dimethylsilyl(2,5-dimethylcyclopentadienyl)(1-adamantylamido)titaniumdimethyl,dimethylsilyl(2,5-dimethylcyclopentadienyl)(t-butylamido)titaniumdimethyl,dimethylsilyl(3,4-dimethylcyclopentadienyl)(cyclododecylamido)titaniumdimethyl,dimethylsilyl(3,4-dimethylcyclopentadienyl)(exo-2-norbornylamido)titaniumdimethyl,dimethylsilyl(3,4-dimethylcyclopentadienyl)(cyclohexylamido)titaniumdimethyl,dimethylsilyl(3,4-dimethylcyclopentadienyl)(1-adamantylamido)titaniumdimethyl,dimethylsilyl(3,4-dimethylcyclopentadienyl)(t-butylamido)titaniumdimethyl,dimethylsilyl(2-ethyl-5-methylcyclopentadienyl)(cyclododecylamido)titaniumdimethyl,dimethylsilyl(2-ethyl-5-methylcyclopentadienyl)(exo-2-norbornylamido)titaniumdimethyl,dimethylsilyl(2-ethyl-5-methylcyclopentadienyl)(cyclohexylamido)titaniumdimethyl,dimethylsilyl(2-ethyl-5-methylcyclopentadienyl)(1-adamantylamido)titaniumdimethyl,dimethylsilyl(2-ethyl-5-methylcyclopentadienyl)(t-butylamido)titaniumdimethyl,dimethylsilyl(3-ethyl-4-methylcyclopentadienyl)(cyclododecylamido)titaniumdimethyl,dimethylsilyl(3-ethyl-4-methylcyclopentadienyl)(exo-2-norbornylamido)titaniumdimethyl,dimethylsilyl(3-ethyl-4-methylcyclopentadienyl)(cyclohexylamido)titaniumdimethyl,dimethylsilyl(3-ethyl-4-methylcyclopentadienyl)(1-adamantylamido)titaniumdimethyl,dimethylsilyl(3-ethyl-4-methylcyclopentadienyl)(t-butylamido)titaniumdimethyl,dimethylsilyl(2-ethyl-3-hexyl-5-methyl-4-octylcyclopentadienyl)(cyclododecylamido)titaniumdimethyl,dimethylsilyl(2-ethyl-3-hexyl-5-methyl-4-octylcyclopentadienyl)(exo-2-norbornylamido)titaniumdimethyl,dimethylsilyl(2-ethyl-3-hexyl-5-methyl-4-octylcyclopentadienyl)(cyclohexylamido)titaniumdimethyl,dimethylsilyl(2-ethyl-3-hexyl-5-methyl-4-octylcyclopentadienyl)(1-adamantylamido)titaniumdimethyl,dimethylsilyl(2-ethyl-3-hexyl-5-methyl-4-octylcyclopentadienyl)(t-butylamido)titaniumdimethyl, dimethylsilyl(2-tetrahydroindenyl)(cyclododecylamido)titaniumdimethyl,dimethylsilyl(2-tetrahydroindenyl)(exo-2-norbornylamido)titaniumdimethyl, dimethylsilyl(2-tetrahydroindenyl)(cyclohexylamido)titaniumdimethyl, dimethylsilyl(2-tetrahydroindenyl)(1-adamantylamido)titaniumdimethyl, dimethylsilyl(2-tetrahydroindenyl)(t-butylamido)titaniumdimethyl and the like.

[0334] The most preferred species are:dimethylsilyl(tetramethylcyclopentadienyl)(cyclododecylamido)titaniumdichloride,dimethylsilyl(tetramethylcyclopentadienyl)(t-butylamido)titaniumdichloride,dimethylsilyl(tetramethylcyclopentadienyl)(cyclohexylamido)titaniumdichloride,dimethylsilyl(tetramethylcyclopentadienyl)(1-adamantylamido)titaniumdichloride,dimethylsilyl(tetramethylcyclopentadienyl)(exo-2-norbornylamido)titaniumdichloride,dimethylsilyl(tetramethylcyclopentadienyl)(cyclododecylamido)titaniumdimethyl,dimethylsilyl(tetramethylcyclopentadienyl)(t-butylamido)titaniumdimethyl,dimethylsilyl(tetramethylcyclopentadienyl)(cyclohexylamido)titaniumdimethyl,dimethylsilyl(tetramethylcyclopentadienyl)(1-adamantylamido)titaniumdimethyl, anddimethylsilyl(tetramethylcyclopentadienyl)(exo-2-norbornylamido)titaniumdimethyl.

[0335] Additionally, at higher reaction temperatures, some catalyststhat produce syndiotactic poly-α-olefin at lower temperatures, willproduce virtually non-crystalline poly-α-olefins at higher temperatures.The choice of transition metal component for this amorphous polymerfraction is a subset of the transition metal component of equations 8-9.Preferred components of this type are illustrated in equation 19:

[0336] wherein A′, M, X₁ and X₂ are as previously defined. SubstituentsS″_(v) and S′″_(v) are independently defined as S″ in equations 8-9where the subscript “v” denotes the carbon atom on the Cp-ring orFlu-ring (fluorenyl-ring) to which the substituent is bonded.

[0337] Preferably metallocene precursors for producing poly-α-olefinshaving largely amorphous character (when used as catalysts under higherreactor temperature conditions) are those of Equation 19 where S′″_(v)are independently chosen such that the metallocene framework has a planeof symmetry containing the metal center and bisecting the Flu- andCp-rings. The A′ ligand need not be symmetrical—for exampledimethylsilyl or methylphenylsilyl will not effect the stereochemisty ofthe polymer produced. Substituent S′″_(v) is defined to be the same asS″ in equation 8-9 where the subscript “v” denotes the carbon atom onthe cyclopentadienyl ring to which the substituent is bonded and wherethere can be zero, two or four substituents, S′″, on thecyclopentadienyl ring provided that the cyclopentadienyl ring issymmetrically substituted. Symmetrically substituted is defined to meanthat the cyclopentadienyl ring is substituted in the 2 and 5 positionsand/or 3 and 4 positions with S′″ groups that are of approximately ofthe same steric bulk. Typically the size of these S′″ groups are within2 carbons of each other. Thus a cyclopentadienyl substituted at the 2and the 5 positions with methyl and ethyl respectively, or substitutedat the 3 and the 4 positions with hexyl and octyl, respectively, wouldbe considered symmetric. Likewise, the cyclopentadienyl ring may besubstituted at all four sites with S′″ groups and be consideredsymmetric as long as each of the symmetrical pairs are of similar stericbulk. Additionally, two adjacent S′″-groups in the 3 and 4 position maybe linked to form a ring provided that the new ring is alsosymmetrically substituted. Because of the distant placement of theS″_(v) substituents on the fluorenyl ring, these substitutents need notbe symmetrically placed on the fluorenyl ring. Hence, the fluorenyl ringmay be substituted with form 0-7 substituents that may be the same ordifferent. Two or more adjacent S″-groups may optionally be linked toform a ring.

[0338] Preferred metallocene transition metal compounds which, accordingto the present invention, provide catalyst systems which are specific tothe production of amorphous or low crystallinity poly-α-olefins include:isopropylidene(cyclopentadienyl)(fluorenyl)zirconium dichloride,isopropylidene(cyclopentadienyl)(fluorenyl)zirconium dimethyl,methylene(cyclopentadienyl)(fluorenyl)zirconium dichloride,methylene(cyclopentadienyl)(fluorenyl)zirconium dimethyl,diphenylmethylene(cyclopentadienyl)(fluorenyl)zirconium dichloride,diphenylmethylene(cyclopentadienyl)(fluorenyl)zirconium dimethyl,di(p-triethylsilylphenyl)methylene(cyclopentadienyl)(fluorenyl)zirconiumdichloride,di(p-triethylsilylphenyl)methylene(cyclopentadienyl)(fluorenyl)zirconiumdimethyl,di(p-trimethylsilylphenyl)methylene(cyclopentadienyl)(fluorenyl)zirconiumdichloride,di(p-trimethylsilylphenyl)methylene(cyclopentadienyl)(fluorenyl)zirconiumdimethyl, diphenylsilyl(cyclopentadienyl)(fluorenyl)zirconiumdichloride, diphenylsilyl(cyclopentadienyl)(fluorenyl)zirconiumdimethyl, dimethylsilyl(cyclopentadienyl)(fluorenyl)zirconiumdichloride, dimethylsilyl(cyclopentadienyl)(fluorenyl)zirconiumdimethyl, methylphenylsilyl(cyclopentadienyl)(fluorenyl)zirconiumdichloride, methylphenylsilyl(cyclopentadienyl)(fluorenyl)zirconiumdimethyl, isopropylidene(cyclopentadienyl)(fluorenyl)hafnium dichloride,isopropylidene(cyclopentadienyl)(fluorenyl)hafnium dimethyl,methylene(cyclopentadienyl)(fluorenyl)hafnium dichloride,methylene(cyclopentadienyl)(fluorenyl)hafnium dimethyl,diphenylmethylene(cyclopentadienyl)(fluorenyl)hafnium dichloride,diphenylmethylene(cyclopentadienyl)(fluorenyl)hafnium dimethyl,di(p-triethylsilylphenyl)methylene(cyclopentadienyl)(fluorenyl)hafniumdichloride,di(p-triethylsilylphenyl)methylene(cyclopentadienyl)(fluorenyl)hafniumdimethyl,di(p-trimethylsilylphenyl)methylene(cyclopentadienyl)(fluorenyl)hafniumdichloride,di(p-trimethylsilylphenyl)methylene(cyclopentadienyl)(fluorenyl)hafniumdimethyl, diphenylsilyl(cyclopentadienyl)(fluorenyl)hafnium dichloride,diphenylsilyl(cyclopentadienyl)(fluorenyl)hafnium dimethyl,dimethylsilyl(cyclopentadienyl)(fluorenyl)hafnium dichloride,dimethylsilyl(cyclopentadienyl)(fluorenyl)hafnium dimethyl,methylphenylsilyl(cyclopentadienyl)(fluorenyl)hafnium dichloride,methylphenylsilyl(cyclopentadienyl)(fluorenyl)hafnium dimethyl,isopropylidene(cyclopentadienyl)(3,8-di-t-butylfluorenyl)zirconiumdichloride,isopropylidene(cyclopentadienyl)(3,8-di-t-butylfluorenyl)zirconiumdimethyl, methylene(cyclopentadienyl)(3,8-di-t-butylfluorenyl)zirconiumdichloride,methylene(cyclopentadienyl)(3,8-di-t-butylfluorenyl)zirconium dimethyl,diphenylmethylene(cyclopentadienyl)(3,8-di-t-butylfluorenyl)zirconiumdichloride,diphenylmethylene(cyclopentadienyl)(3,8-di-t-butylfluorenyl)zirconiumdimethyl,di(p-triethylsilylphenyl)methylene(cyclopentadienyl)(3,8-di-t-butylfluorenyl)zirconiumdichloride,di(p-triethylsilylphenyl)methylene(cyclopentadienyl)(3,8-di-t-butylfluorenyl)zirconiumdimethyl,di(p-trimethylsilylphenyl)methylene(cyclopentadienyl)(3,8-di-t-butylfluorenyl)zirconiumdichloride,di(p-trimethylsilylphenyl)methylene(cyclopentadienyl)(3,8-di-t-butylfluorenyl)zirconiumdimethyl,diphenylsilyl(cyclopentadienyl)(3,8-di-t-butylfluorenyl)zirconiumdichloride,diphenylsilyl(cyclopentadienyl)(3,8-di-t-butylfluorenyl)zirconiumdimethyl,dimethylsilyl(cyclopentadienyl)(3,8-di-t-butylfluorenyl)zirconiumdichloride,dimethylsilyl(cyclopentadienyl)(3,8-di-t-butylfluorenyl)zirconiumdimethyl,methylphenylsilyl(cyclopentadienyl)(3,8-di-t-butylfluorenyl)zirconiumdichloride,methylphenylsilyl(cyclopentadienyl)(3,8-di-t-butylfluorenyl)zirconiumdimethyl,isopropylidene(cyclopentadienyl)(3,8-di-t-butylfluorenyl)hafniumdichloride,isopropylidene(cyclopentadienyl)(3,8-di-t-butylfluorenyl)hafniumdimethyl, methylene(cyclopentadienyl)(3,8-di-t-butylfluorenyl)hafniumdichloride, methylene(cyclopentadienyl)(3,8-di-t-butylfluorenyl)hafniumdimethyl,diphenylmethylene(cyclopentadienyl)(3,8-di-t-butylfluorenyl)hafniumdichloride,diphenylmethylene(cyclopentadienyl)(3,8-di-t-butylfluorenyl)hafniumdimethyl,di(p-triethylsilylphenyl)methylene(cyclopentadienyl)(3,8-di-t-butylfluorenyl)hafniumdichloride,di(p-triethylsilylphenyl)methylene(cyclopentadienyl)(3,8-di-t-butylfluorenyl)hafniumdimethyl,di(p-trimethylsilylphenyl)methylene(cyclopentadienyl)(3,8-di-t-butylfluorenyl)hafniumdichloride,di(p-trimethylsilylphenyl)methylene(cyclopentadienyl)(3,8-di-t-butylfluorenyl)hafniumdimethyl,diphenylsilyl(cyclopentadienyl)(3,8-di-t-butylfluorenyl)hafniumdichloride,diphenylsilyl(cyclopentadienyl)(3,8-di-t-butylfluorenyl)hafniumdimethyl,dimethylsilyl(cyclopentadienyl)(3,8-di-t-butylfluorenyl)hafniumdichloride,dimethylsilyl(cyclopentadienyl)(3,8-di-t-butylfluorenyl)hafniumdimethyl,methylphenylsilyl(cyclopentadienyl)(3,8-di-t-butylfluorenyl)hafniumdichloride,methylphenylsilyl(cyclopentadienyl)(3,8-di-t-butylfluorenyl)hafniumdimethyl,isopropylidene(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)zirconiumdichloride,isopropylidene(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)zirconiumdimethyl,methylene(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)zirconiumdichloride,methylene(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)zirconiumdimethyl,diphenylmethylene(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)zirconiumdichloride,diphenylmethylene(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)zirconiumdimethyl,di(p-triethylsilylphenyl)methylene(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)zirconiumdichloride,di(p-triethylsilylphenyl)methylene(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)zirconiumdimethyl,di(p-trimethylsilylphenyl)methylene(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)zirconiumdichloride,di(p-trimethylsilylphenyl)methylene(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)zirconiumdimethyl,diphenylsilyl(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)zirconiumdichloride,diphenylsilyl(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)zirconiumdimethyl,dimethylsilyl(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)zirconiumdichloride,dimethylsilyl(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)zirconiumdimethyl,methylphenylsilyl(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)zirconiumdichloride,methylphenylsilyl(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)zirconiumdimethyl,isopropylidene(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)hafniumdichloride,isopropylidene(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)hafniumdimethyl,methylene(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)hafniumdichloride,methylene(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)hafniumdimethyl,diphenylmethylene(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)hafniumdichloride,diphenylmethylene(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)hafniumdimethyl,di(p-triethylsilylphenyl)methylene(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)hafniumdichloride,di(p-triethylsilylphenyl)methylene(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)hafniumdimethyl,di(p-trimethylsilylphenyl)methylene(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)hafniumdichloride,di(p-trimethylsilylphenyl)methylene(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)hafniumdimethyl,diphenylsilyl(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)hafniumdichloride,diphenylsilyl(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)hafniumdimethyl,dimethylsilyl(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)hafniumdichloride,dimethylsilyl(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)hafniumdimethyl,methylphenylsilyl(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)hafniumdichloride,methylphenylsilyl(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)hafniumdimethyl, and the like.

[0339] The most preferred species are:di(p-triethylsilylphenyl)methylene(cyclopentadienyl)(3,8-di-t-butylfluorenyl)zirconiumdichloride,di(p-triethylsilylphenyl)methylene(cyclopentadienyl)(3,8-di-t-butylfluorenyl)hafniumdichloride,di(p-triethylsilylphenyl)methylene(cyclopentadienyl)(3,8-di-t-butylfluorenyl)zirconiumdimethyl,di(p-triethylsilylphenyl)methylene(cyclopentadienyl)(3,8-di-t-butylfluorenyl)hafniumdimethyl,di(p-triethylsilylphenyl)methylene(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)zirconiumdichloride,di(p-triethylsilylphenyl)methylene(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)hafniumdichloride,di(p-triethylsilylphenyl)methylene(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)zirconiumdimethyl, anddi(p-triethylsilylphenyl)methylene(cyclopentadienyl)(3,3,6,6,9,9,12,12-octamethyl-4,4,5,5,8,8,9,9-octahydrodibenzyl[b,h]fluorenyl)hafniumdimethyl.

[0340] Additionally, compounds of formula 20 may be used to produce theamorphous polymer fraction.

[0341] In this case, S″_(v) are independently chosen such that themetallocene framework has a plane of symmetry that bisects M and A′.Substituents S″_(v) are independently defined to be the same as S″ inequation 8-9 where the subscript “v” denotes the carbon atom on thecyclopentadienyl ring to which the substituent is bonded and where therecan be zero to four substituents, S″, on the cyclopentadienyl ringprovided that the cyclopentadienyl ring is symmetrically substituted.Symmetrically substituted is defined to mean that the cyclopentadienylring is substituted in the 2 and 2′positions and/or 3 and 3′ positionsand/or 4 and 4′ positions and/or 5 and 5′ positions with S″ groups thatare of approximately of the same steric bulk. Typically the size ofthese S″ groups are within 2 carbons of each other. Thus acyclopentadienyl substituted at the 2 and the 2′ positions with methyland ethyl respectively, or substituted at the 3 and the 3′ positionswith hexyl and octyl, respectively, would be considered symmetric.Likewise, the cyclopentadienyl ring may be substituted at all four siteswith S″ groups and be considered symmetric as long as each of thesymmetrical pairs are of similar steric bulk. Additionally, two adjacentS″-groups may be linked to form a ring provided that the new ring isalso symmetrically substituted. Such complexes such asmeso-Me₂Si(indenyl)₂ZrMe₂ meso-CH₂CH₂(indenyl)₂ZrCl₂ are well known inthe art and generally produce amorphous polymers useful in thisinvention.

[0342] Preferred meso-metallocene compounds which, according to thepresent invention, provide catalyst systems which are specific to theproduction of amorphous poly-α-olefins include the meso versions of:dimethylsilylbis(indenyl)zirconium dichloride,dimethylsilylbis(indenyl)zirconium dimethyl,diphenylsilylbis(indenyl)zirconium dichloride,diphenylsilylbis(indenyl)zirconium dimethyl,methylphenylsilylbis(indenyl)zirconium dichloride,methylphenylsilylbis(indenyl)zirconium dimethyl,ethylenebis(indenyl)zirconium dichloride, ethylenebis(indenyl)zirconiumdimethyl, methylenebis(indenyl)zirconium dichloride,methylenebis(indenyl)zirconium dimethyl,dimethylsilylbis(indenyl)hafnium dichloride,dimethylsilylbis(indenyl)hafnium dimethyl,diphenylsilylbis(indenyl)hafnium dichloride,diphenylsilylbis(indenyl)hafnium dimethyl,methylphenylsilylbis(indenyl)hafnium dichloride,methylphenylsilylbis(indenyl)hafnium dimethyl,ethylenebis(indenyl)hafnium dichloride, ethylenebis(indenyl)hafniumdimethyl, methylenebis(indenyl)hafnium dichloride,methylenebis(indenyl)hafnium dimethyl,dimethylsilylbis(tetrahydroindenyl)zirconium dichloride,dimethylsilylbis(tetrahydroindenyl)zirconium dimethyl,diphenylsilylbis(tetrahydroindenyl)zirconium dichloride,diphenylsilylbis(tetrahydroindenyl)zirconium dimethyl,methylphenylsilylbis(tetrahydroindenyl)zirconium dichloride,methylphenylsilylbis(tetrahydroindenyl)zirconium dimethyl,ethylenebis(tetrahydroindenyl)zirconium dichloride,ethylenebis(tetrahydroindenyl)zirconium dimethyl,methylenebis(tetrahydroindenyl)zirconium dichloride,methylenebis(tetrahydroindenyl)zirconium dimethyl,dimethylsilylbis(tetrahydroindenyl)hafnium dichloride,dimethylsilylbis(tetrahydroindenyl)hafnium dimethyl,diphenylsilylbis(tetrahydroindenyl)hafnium dichloride,diphenylsilylbis(tetrahydroindenyl)hafnium dimethyl,methylphenylsilylbis(tetrahydroindenyl)hafnium dichloride,methylphenylsilylbis(tetrahydroindenyl)hafnium dimethyl,ethylenebis(tetrahydroindenyl)hafnium dichloride,ethylenebis(tetrahydroindenyl)hafnium dimethyl,methylenebis(tetrahydroindenyl)hafnium dichloride,methylenebis(tetrahydroindenyl)hafnium dimethyl,dimethylsilylbis(2-methylindenyl)zirconium dichloride,dimethylsilylbis(2-methylindenyl)zirconium dimethyl,diphenylsilylbis(2-methylindenyl)zirconium dichloride,diphenylsilylbis(2-methylindenyl)zirconium dimethyl,methylphenylsilylbis(2-methylindenyl)zirconium dichloride,methylphenylsilylbis(2-methylindenyl)zirconium dimethyl,ethylenebis(2-methylindenyl)zirconium dichloride,ethylenebis(2-methylindenyl)zirconium dimethyl,methylenebis(2-methylindenyl)zirconium dichloride,methylenebis(2-methylindenyl)zirconium dimethyl,dimethylsilylbis(2-methylindenyl)hafnium dichloride,dimethylsilylbis(2-methylindenyl)hafnium dimethyl,diphenylsilylbis(2-methylindenyl)hafnium dichloride,diphenylsilylbis(2-methylindenyl)hafnium dimethyl,methylphenylsilylbis(2-methylindenyl)hafnium dichloride,methylphenylsilylbis(2-methylindenyl)hafnium dimethyl,ethylenebis(2-methylindenyl)hafnium dichloride,ethylenebis(2-methylindenyl)hafnium dimethyl,methylenebis(2-methylindenyl)hafnium dichloride,methylenebis(2-methylindenyl)hafnium dimethyl,dimethylsilylbis(2-methyl-4-phenylindenyl)zirconium dichloride,diphenylsilylbis(2-methyl-4-phenylindenyl)zirconium dimethyl,diphenylsilylbis(2-methyl-4-phenylindenyl)zirconium dichloride,diphenylsilylbis(2-methyl-4-phenylindenyl)zirconium dimethyl,methylphenylsilylbis(2-methyl-4-phenylindenyl)zirconium dichloride,methylphenylsilylbis(2-methyl-4-phenylindenyl)zirconium dimethyl,ethylenebis(2-methyl-4-phenylindenyl)zirconium dichloride,ethylenebis(2-methyl-4-phenylindenyl)zirconium dimethyl,methylenebis(2-methyl-4-phenylindenyl)zirconium dichloride,methylenebis(2-methyl-4-phenylindenyl)zirconium dimethyl,dimethylsilylbis(2-methyl-4-phenylindenyl)hafnium dichloride,dimethylsilylbis(2-methyl-4-phenylindenyl)hafnium dimethyl,diphenylsilylbis(2-methyl-4-phenylindenyl)hafnium dichloride,diphenylsilylbis(2-methyl-4-phenylindenyl)hafnium dimethyl,methylphenylsilylbis(2-methyl-4-phenylindenyl)hafnium dichloride,methylphenylsilylbis(2-methyl-4-phenylindenyl)hafnium dimethyl,ethylenebis(2-methyl-4-phenylindenyl)hafnium dichloride,ethylenebis(2-methyl-4-phenylindenyl)hafnium dimethyl,methylenebis(2-methyl-4-phenylindenyl)hafnium dichloride,methylenebis(2-methyl-4-phenylindenyl)hafnium dimethyl,dimethylsilylbis(4,7-dimethylindenyl)zirconium dichloride,dimethylsilylbis(4,7-dimethylindenyl)zirconium dimethyl,diphenylsilylbis(4,7-dimethylindenyl)zirconium dichloride,diphenylsilylbis(4,7-dimethylindenyl)zirconium dimethyl,methylphenylsilylbis(4,7-dimethylindenyl)zirconium dichloride,methylphenylsilylbis(4,7-dimethylindenyl)zirconium dimethyl,ethylenebis(4,7-dimethylindenyl)zirconium dichloride,ethylenebis(4,7-dimethylindenyl)zirconium dimethyl,methylenebis(4,7-dimethylindenyl)zirconium dichloride,methylenebis(4,7-dimethylindenyl)zirconium dimethyl,dimethylsilylbis(4,7-dimethylindenyl)hafnium dichloride,dimethylsilylbis(4,7-dimethylindenyl)hafnium dimethyl,diphenylsilylbis(4,7-dimethylindenyl)hafnium dichloride,diphenylsilylbis(4,7-dimethylindenyl)hafnium dimethyl,methylphenylsilylbis(4,7-dimethylindenyl)hafnium dichloride,methylphenylsilylbis(4,7-dimethylindenyl)hafnium dimethyl,ethylenebis(4,7-dimethylindenyl)hafnium dichloride,ethylenebis(4,7-dimethylindenyl)hafnium dimethyl,methylenebis(4,7-dimethylindenyl)hafnium dichloride,methylenebis(4,7-dimethylindenyl)hafnium dimethyl, and the like.

[0343] The most preferred species are the racemic versions of:dimethylsilylbis(indenyl)zirconium dichloride,dimethylsilylbis(indenyl)zirconium dimethyl,ethylenebis(indenyl)zirconium dichloride, ethylenebis(indenyl)zirconiumdimethyl, dimethylsilylbis(indenyl)hafnium dichloride,dimethylsilylbis(indenyl)hafnium dimethyl, ethylenebis(indenyl)hafniumdichloride, ethylenebis(indenyl)hafnium dimethyl,dimethylsilylbis(tetrahydroindenyl)zirconium dichloride,dimethylsilylbis(tetrahydroindenyl)zirconium dimethyl,ethylenebis(tetrahydroindenyl)zirconium dichloride,ethylenebis(tetrahydroindenyl)zirconium dimethyl,dimethylsilylbis(tetrahydroindenyl)hafnium dichloride,dimethylsilylbis(tetrahydroindenyl)hafnium dimethyl,ethylenebis(tetrahydroindenyl)hafnium dichloride,ethylenebis(tetrahydroindenyl)hafnium dimethyl,dimethylsilylbis(2-methylindenyl)zirconium dichloride,dimethylsilylbis(2-methylindenyl)zirconium dimethyl,ethylenebis(2-methylindenyl)zirconium dichloride,ethylenebis(2-methylindenyl)zirconium dimethyl,dimethylsilylbis(2-methylindenyl)hafnium dichloride,dimethylsilylbis(2-methylindenyl)hafnium dimethyl,ethylenebis(2-methylindenyl)hafnium dichloride, andethylenebis(2-methylindenyl)hafnium dimethyl

[0344] When two transition metal compound based catalysts are used inone reactor as a mixed catalyst system, the two transition metalcompounds should be chosen such that the two are compatible. A simplescreening method such as by ¹H or ¹³C NMR, known to those of ordinaryskill in the art, can be used to determine which transition metalcompounds are compatible.

[0345] It is preferable to use the same activator for the transitionmetal compounds, however, two different activators, such as anon-coordinating anion activator and an alumoxane, can be used incombination. If one or more transition metal compounds contain an X₁ orX₂ ligand which is not a hydride, hydrocarbyl, or substitutedhydrocarbyl, then the alumoxane should be contacted with the transitionmetal compounds prior to addition of the non-coordinating anionactivator.

[0346] Particularly preferred combinations of transition metal compoundsinclude:

[0347] (1) Me₂Si(Me₄C₅)(N-c-C₁₂H₂₃)TiCl₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrCl₂(2-Me-4-PhInd=2-methyl-4-phenylindenyl,c-C₁₂H₂₃=cyclododecyl, Me₄C₅-tetramethylcyclopentadienyl) activated withan alumoxane, such as methylalumoxane or modified methylalumoxane;

[0348] (2) Me₂Si(Me₄C₅)(N-c-C₁₂H₂₃)TiMe₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with a non-coordinating anionactivator, such as N,N-dimethylaniliniumtetrakis(pentaflourophenyl)boron or triphenylcarboniumtetrakis(pentaflourophenyl)boron;

[0349] (3) Me₂Si(Me₄C₅)(N-c-C₁₂H₂₃)TiCl₂ and rac-Me₂Si(2-MeInd)₂ZrCl₂(2-MeInd=2-methyl-indenyl) activated with an alumoxane, such asmethylalumoxane or modified methylalumoxane;

[0350] (4) Me₂Si(Me₄C₅)(N-c-C₁₂H₂₃)TiMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂activated with a non-coordinating anion activator, such asN,N-dimethylanilinium tetrakis(pentaflourophenyl)boron ortriphenylcarbonium tetrakis(pentaflourophenyl)boron;

[0351] (5) Me₂Si(Me₄C₅)(N-1-adamantyl)TiCl₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrCl₂ activated with an alumoxane, such asmethylalumoxane or modified methylalumoxane;

[0352] (6) Me₂Si(Me₄C₅)(N-1-adamantyl)TiMe₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with a non-coordinating anionactivator, such as N,N-dimethylaniliniumtetrakis(pentaflourophenyl)boron or triphenylcarboniumtetrakis(pentaflourophenyl)boron;

[0353] (7) Me₂Si(Me₄C₅)(N-1-adamantyl)TiCl₂ and rac-Me₂Si(2-MeInd)₂ZrCl₂activated with an alumoxane, such as methylalumoxane or modifiedmethylalumoxane;

[0354] (8) Me₂Si(Me₄C₅)(N-1-adamantyl)TiMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂activated with a non-coordinating anion activator, such asN,N-dimethylanilinium tetrakis(pentaflourophenyl)boron ortriphenylcarbonium tetrakis(pentaflourophenyl)boron;

[0355] (9) Me₂Si(Me₄C₅)(N-t-butyl)TiCl₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrCl₂ activated with an alumoxane, such asmethylalumoxane or modified methylalumoxane;

[0356] (10) Me₂Si(Me₄C₅)(N-t-butyl)TiMe₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with a non-coordinating anionactivator, such as N,N-dimethylaniliniumtetrakis(pentaflourophenyl)boron or triphenylcarboniumtetrakis(pentaflourophenyl)boron;

[0357] (11) Me₂Si(Me₄C₅)(N-t-butyl)TiCl₂ and rac-Me₂Si(2-MeInd)activated with an alumoxane, such as methylalumoxane or modifiedmethylalumoxane;

[0358] (12) Me₂Si(Me₄C₅)(N-t-butyl)TiMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂activated with a non-coordinating anion activator, such asN,N-dimethylanilinium tetrakis(pentaflourophenyl)boron ortriphenylcarbonium tetrakis(pentaflourophenyl)boron;

[0359] (13) Me₂Si(Me₄C₅)(N-exo-norbornyl)TiCl₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrCl₂ activated with an alumoxane, such asmethylalumoxane or modified methylalumoxane;

[0360] (14) Me₂Si(Me₄C₅)(N-exo-norbornyl)TiMe₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with a non-coordinating anionactivator, such as N,N-dimethylaniliniumtetrakis(pentaflourophenyl)boron or triphenylcarboniumtetrakis(pentaflourophenyl)boron;

[0361] (15) Me₂Si(Me₄C₅)(N-exo-norbornyl)TiCl₂ andrac-Me₂Si(2-MeInd)₂ZrCl₂ activated with an alumoxane, such asmethylalumoxane or modified methylalumoxane;

[0362] (16) Me₂Si(Me₄C₅)(N-exo-norbornyl)TiMe₂ andrac-Me₂Si(2-MeInd)₂ZrMe₂ activated with a non-coordinating anionactivator, such as N,N-dimethylaniliniumtetrakis(pentaflourophenyl)boron or triphenylcarboniumtetrakis(pentaflourophenyl)boron;

[0363] (17) (p-Et₃SiPh)₂C(Cp)(3,8-di-t-BuFlu)HfCl₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrCl₂(3,6-di-t-BuFlu=3,8-di-tert-butylfluorenyl, Cp=cyclopentadienyl)activated with an alumoxane, such as methylalumoxane or modifiedmethylalumoxane;

[0364] (18) (p-Et₃SiPh)₂C(Cp)(3,8-di-t-BuFlu)HfMe₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with a non-coordinating anionactivator, such as N,N-dimethylaniliniumtetrakis(pentaflourophenyl)boron or triphenylcarboniumtetrakis(pentaflourophenyl)boron;

[0365] (19) (p-Et₃SiPh)₂C(Cp)(3,8-di-t-BuFlu)HfCl₂ andrac-Me₂Si(2-MeInd)₂ZrCl₂ activated with an alumoxane, such asmethylalumoxane or modified methylalumoxane;

[0366] (20) (p-Et₃SiPh)₂C(Cp)(3,8-di-t-BuFlu)HfMe₂ andrac-Me₂Si(2-MeInd)₂ZrMe₂ activated with a non-coordinating anionactivator, such as N,N-dimethylanilinium tetrakispentaflourophenyl)boronor triphenylcarbonium tetrakis(pentaflourophenyl)boron;

[0367] (21) meso-CH₂CH₂(Ind)₂ZrCl₂ and rac-Me₂Si(H₄Ind)₂ZrCl₂(Ind=indenyl, H₄Ind=tetrahydroindenyl) activated with an alumoxane, suchas methylalumoxane or modified methylalumoxane;

[0368] (22) meso-CH₂CH₂(Ind)₂ZrMe₂ and rac-Me₂Si(H₄Ind)₂ZrMe₂ activatedwith a non-coordinating anion activator, such as N,N-dimethylaniliniumtetrakis(pentaflourophenyl)boron or triphenylcarboniumtetrakis(pentaflourophenyl)boron;

[0369] (23) meso-CH₂CH₂(Ind)₂ZrCl₂ and rac-Me₂Si(2-MeInd)₂ZrCl₂activated with an alumoxane, such as methylalumoxane or modifiedmethylalumoxane;

[0370] (24) meso-CH₂CH₂(Ind)₂ZrMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂activated with a non-coordinating anion activator, such asN,N-dimethylanilinium tetrakis(pentaflourophenyl)boron ortriphenylcarbonium tetrakis(pentaflourophenyl)boron;

[0371] (25) meso-Me₂Si(Ind)₂ZrCl₂ and rac-Me₂Si(H₄Ind)₂ZrCl₂ activatedwith an alumoxane, such as methylalumoxane or modified methylalumoxane;

[0372] (26) meso-Me₂Si(Ind)₂ZrMe₂ and rac-Me₂Si(H₄Ind)₂ZrMe₂ activatedwith a non-coordinating anion activator, such as N,N-dimethylaniliniumtetrakis(pentaflourophenyl)boron or triphenylcarboniumtetrakis(pentaflourophenyl)boron;

[0373] (27) meso-Me₂Si(Ind)₂ZrCl₂ and rac-Me₂Si(2-MeInd)₂ZrCl₂ activatedwith an alumoxane, such as methylalumoxane or modified methylalumoxane;

[0374] (28) meso-Me₂Si(Ind)₂ZrMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂ activatedwith a non-coordinating anion activator, such as N,N-dimethylaniliniumtetrakis(pentaflourophenyl)boron or triphenylcarboniumtetrakis(pentaflourophenyl)boron;

[0375] (29) meso-Me₂Si(2-MeInd)₂ZrCl₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrCl₂activated with an alumoxane, such as methylalumoxane or modifiedmethylalumoxane;

[0376] (30) meso-Me₂Si(2-MeInd)₂ZrMe₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂activated with a non-coordinating anion activator, such asN,N-dimethylanilinium tetrakis(pentaflourophenyl)boron ortriphenylcarbonium tetrakis(pentaflourophenyl)boron;

[0377] (31) meso-Me₂Si(2-MeInd)₂ZrCl₂ and rac-Me₂Si(2-MeInd)₂ZrCl₂activated with an alumoxane, such as methylalumoxane or modifiedmethylalumoxane;

[0378] (32) meso-Me₂Si(2-MeInd)₂ZrMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂activated with a non-coordinating anion activator, such asN,N-dimethylanilinium tetrakis(pentaflourophenyl)boron ortriphenylcarbonium tetrakis(pentaflourophenyl)boron;

[0379] (33) meso-CH₂CH₂(2-MeInd)₂ZrCl₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrCl₂activated with an alumoxane, such as methylalumoxane or modifiedmethylalumoxane;

[0380] (34) meso-CH₂CH₂(2-MeInd)₂ZrMe₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂activated with a non-coordinating anion activator, such asN,N-dimethylanilinium tetrakis(pentaflourophenyl)boron ortriphenylcarbonium tetrakis(pentaflourophenyl)boron;

[0381] (35) meso-CH₂CH₂(2-MeInd)₂ZrCl₂ and rac-Me₂Si(2-MeInd)₂ZrCl₂activated with an alumoxane, such as methylalumoxane or modifiedmethylalumoxane;

[0382] (36) meso-CH₂CH₂(2-MeInd)₂ZrMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂activated with a non-coordinating anion activator, such asN,N-dimethylanilinium tetrakis(pentaflourophenyl)boron ortriphenylcarbonium tetrakis(pentaflourophenyl)boron;

[0383] (37) meso-Me₂Si(2-Me-4-PhInd)₂ZrCl₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrCl₂ activated with an alumoxane, such asmethylalumoxane or modified methylalumoxane;

[0384] (38) meso-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with a non-coordinating anionactivator, such as N,N-dimethylaniliniumtetrakis(pentaflourophenyl)boron or triphenylcarboniumtetrakis(pentaflourophenyl)boron;

[0385] (39) meso-CH₂CH₂(2-Me-4-PhInd)₂ZrCl₂ andrac-CH₂CH₂(2-Me-4-PhInd)₂ZrCl₂ activated with an alumoxane, such asmethylalumoxane or modified methylalumoxane;

[0386] (40) meso-CH₂CH₂(2-Me-4-PhInd)₂ZrMe₂ andrac-CH₂CH₂(2-Me-4-PhInd)₂ZrMe₂ activated with a non-coordinating anionactivator, such as N,N-dimethylaniliniumtetrakis(pentaflourophenyl)boron or triphenylcarboniumtetrakis(pentaflourophenyl)boron;

[0387] (41) meso-CH₂CH₂(2-MeInd)₂ZrCl₂ and rac-CH₂CH₂(2-MePhInd)₂ZrCl₂activated with an alumoxane, such as methylalumoxane or modifiedmethylalumoxane;

[0388] (42) meso-CH₂CH₂(2-MeInd)₂ZrMe₂ and rac-CH₂CH₂(2-MeInd)₂ZrMe₂activated with a non-coordinating anion activator, such asN,N-dimethylanilinium tetrakis(pentaflourophenyl)boron ortriphenylcarbonium tetrakis(pentaflourophenyl)boron;

[0389] (43) meso-CH₂CH₂(Ind)₂ZrCl₂ and rac-CH₂CH₂(Ind)₂ZrCl₂ activatedwith an alumoxane, such as methylalumoxane or modified methylalumoxane;

[0390] (44) meso-CH₂CH₂(Ind)₂ZrMe₂ and rac-CH₂CH₂(Ind)₂ZrMe₂ activatedwith a non-coordinating anion activator, such as N,N-dimethylaniliniumtetrakis(pentaflourophenyl)boron or triphenylcarboniumtetrakis(pentaflourophenyl)boron;

[0391] (45) meso-Me₂Si(Ind)₂ZrCl₂ and rac-Me₂Si(Ind)₂ZrCl₂ activatedwith an alumoxane, such as methylalumoxane or modified methylalumoxane;

[0392] (46) meso-Me₂Si(Ind)₂ZrMe₂ and rac-Me₂Si(Ind)₂ZrMe₂ activatedwith a non-coordinating anion activator, such as N,N-dimethylaniliniumtetrakis(pentaflourophenyl)boron or triphenylcarboniumtetrakis(pentaflourophenyl)boron;

[0393] (47) meso-CH₂CH₂(Ind)₂ZrCl₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrCl₂(4,7-Me₂Ind=4,7-dimethylindenyl) activated with an alumoxane, such asmethylalumoxane or modified methylalumoxane;

[0394] (48) meso-CH₂CH₂(Ind)₂ZrMe₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrMe₂activated with a non-coordinating anion activator, such asN,N-dimethylanilinium tetrakis(pentaflourophenyl)boron ortriphenylcarbonium tetrakis(pentaflourophenyl)boron;

[0395] (49) meso-Me₂Si(Ind)₂ZrCl₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrCl₂activated with an alumoxane, such as methylalumoxane or modifiedmethylalumoxane;

[0396] (50) meso-Me₂Si(Ind)₂ZrMe₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrMe₂activated with a non-coordinating anion activator, such asN,N-dimethylanilinium tetrakis(pentaflourophenyl)boron ortriphenylcarbonium tetrakis(pentaflourophenyl)boron;

[0397] (51) meso-CH₂CH₂(2-MeInd)₂ZrCl₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrCl₂(4,7-Me₂Ind=4,7-dimethylindenyl) activated with an alumoxane, such asmethylalumoxane or modified methylalumoxane;

[0398] (52) meso-CH₂CH₂(2-MeInd)₂ZrMe₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrMe₂activated with a non-coordinating anion activator, such asN,N-dimethylanilinium tetrakis(pentaflourophenyl)boron ortriphenylcarbonium tetrakis(pentaflourophenyl)boron;

[0399] (53) meso-Me₂Si(2-MeInd)₂ZrCl₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrCl₂activated with an alumoxane, such as methylalumoxane or modifiedmethylalumoxane; and

[0400] (54) meso-Me₂Si(2-MeInd)₂ZrMe₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrMe₂activated with a non-coordinating anion activator, such asN,N-dimethylanilinium tetrakis(pentaflourophenyl)boron ortriphenylcarbonium tetrakis(pentaflourophenyl)boron.

[0401] The two transition metal compounds (pre-catalysts) may be used inany ratio. Preferred molar ratios of (A) transition metal compound toproduce amorphous polymer to (B) transition metal compound to producecrystalline polymer fall within the range of (A:B) 1:1000 to 1000:1,alternatively 1:100 to 500:1, alternatively 1:10 to 200:1, alternatively1:1 to 100:1, and alternatively 1:1 to 75:1, and alternatively 5:1 to50:1. The particular ratio chosen will depend on the exact pre-catalystschosen, the method of activation, and the end product desired. In aparticular embodiment, when using the two pre-catalysts (A—“amorphouspolymer producing precatalyst” and B—“crystalline polymer producingcatalyst”), where both are activated with the same activator, thepreferred mole percents, based upon the molecular weight of thepre-catalysts, are 10 to 99.9% A to 0.1 to 90% B, alternatively 25 to99% A to 0.5 to 50% B, alternatively 50 to 99% A to 1 to 25% B, andalternatively 75 to 99% A to 1 to 10% B.

[0402] In general the combined pre-catalyst compounds and the activatorare combined in ratios of about 1:10,000 to about 10:1. When alumoxaneor aluminum alkyl activators are used, the combinedpre-catalyst-to-activator molar ratio is from 1:5000 to 10:1,alternatively from 1:1000 to 10:1; alternatively, 1:500 to 2:1; or 1:300to 1:1. When ionizing activators are used, the combinedpre-catalyst-to-activator molar ratio is from 10:1 to 1:10; 5:1 to 1:5;2:1 to 1:2; or 1.2:1 to 1:1. Multiple activators may be used, includingusing mixes of alumoxanes or aluminum alkyls with ionizing activators.

[0403] In another preferred embodiment a third catalyst (pre-catalystplus activator) is present in the processes described above. The thirdcatalyst may be any of the pre-catalyst components listed herein.Preferred third pre-catalysts include those that are capable ofproducing waxes. Preferred examples include:rac-dimethylsilylbis(4,7-dimethylindenyl)hafnium dichloride,rac-dimethylsilylbis(4,7-dimethylindenyl)hafnium dimethyl,rac-dimethylsilylbis(4,7-dimethylindenyl)zirconium dichloride,rac-dimethylsilylbis(4,7-dimethylindenyl)zirconium dimethyl,rac-dimethylsilylbis(indenyl)hafnium dichloride,rac-dimethylsilylbis(indenyl)hafnium dimethyl,rac-dimethylsilylbis(indenyl)zirconium dichloride,rac-dimethylsilylbis(indenyl)zirconium dimethyl,rac-dimethylsilylbis(tetrahydroindenyl)hafnium dichloride,rac-dimethylsilylbis(tetrahydroindenyl)hafnium dimethyl,rac-dimethylsilylbis(tetrahydroindenyl)zirconium dichloride,rac-dimethylsilylbis(tetrahydroindenyl)zirconium dimethyl,rac-diphenylsilylbis(4,7-dimethylindenyl)hafnium dichloride,rac-diphenylsilylbis(4,7-dimethylindenyl)hafnium dimethyl,rac-diphenylsilylbis(4,7-dimethylindenyl)zirconium dichloride,rac-diphenylsilylbis(4,7-dimethylindenyl)zirconium dimethyl,rac-diphenylsilylbis(indenyl)hafnium dichloride,rac-diphenylsilylbis(indenyl)hafnium dimethyl,rac-diphenylsilylbis(indenyl)zirconium dichloride,rac-diphenylsilylbis(indenyl)zirconium dimethyl,rac-diphenylsilylbis(tetrahydroindenyl)hafnium dichloride,rac-diphenylsilylbis(tetrahydroindenyl)hafnium dimethyl,rac-diphenylsilylbis(tetrahydroindenyl)zirconium dichloride,rac-diphenylsilylbis(tetrahydroindenyl)zirconium dimethyl,rac-methylphenylsilylbis(4,7-dimethylindenyl)hafnium dichloride,rac-methylphenylsilylbis(4,7-dimethylindenyl)hafnium dimethyl,rac-methylphenylsilylbis(4,7-dimethylindenyl)zirconium dichloride,rac-methylphenylsilylbis(4,7-dimethylindenyl)zirconium dimethyl,rac-methylphenylsilylbis(indenyl)hafnium dichloride,rac-methylphenylsilylbis(indenyl)hafnium dimethyl,rac-methylphenylsilylbis(indenyl)zirconium dichloride,rac-methylphenylsilylbis(indenyl)zirconium dimethyl,rac-methylphenylsilylbis(tetrahydroindenyl)hafnium dichloride,rac-methylphenylsilylbis(tetrahydroindenyl)hafnium dimethyl,rac-methylphenylsilylbis(tetrahydroindenyl)zirconium dichloride,rac-methylphenylsilylbis(tetrahydroindenyl)zirconium dimethyl,rac-ethylenebis(4,7-dimethylindenyl)hafnium dichloride,rac-ethylenebis(4,7-dimethylindenyl)hafnium dimethyl,rac-ethylenebis(4,7-dimethylindenyl)zirconium dichloride,rac-ethylenebis(4,7-dimethylindenyl)zirconium dimethyl,rac-ethylenebis(indenyl)hafnium dichloride,rac-ethylenebis(indenyl)hafnium dimethyl,rac-ethylenebis(indenyl)zirconium dichloride,rac-ethylenebis(indenyl)zirconium dimethyl,rac-ethylenebis(tetrahydroindenyl)hafnium dichloride,rac-ethylenebis(tetrahydroindenyl)hafnium dimethyl,rac-ethylenebis(tetrahydroindenyl)zirconium dichloride, andrac-ethylenebis(tetrahydroindenyl)zirconium dimethyl

[0404] Three transition metal compounds (pre-catalysts) may be used inany ratio. Preferred molar ratios of (A) transition metal compound toproduce amorphous polypropylene to (B) transition metal compound toproduce crystalline polypropylene to (C) transition metal compound toproduce wax fall within the range of(A:B:C) 1:1000:500 to 1000:1:1,alternatively 1:100:50 to 500:1:1, alternatively 1:10:10 to 200:1:1,alternatively 1:1:1 to 100:1:50, and alternatively 1:1:10 to 75:1:50,and alternatively 5:1:1 to 50:1:50. The particular ratio chosen willdepend on the exact pre-catalysts chosen, the method of activation, andthe end product desired.

[0405] Additional preferred catalysts and process are described in U.S.Pat. Nos. 6,376,410 and 6,380,122, which are incorporated by referenceherein.

[0406] In another embodiment the catalyst compositions of this inventioninclude a support material or carrier. For example, the one or morecatalyst components and/or one or more activators may be deposited on,contacted with, vaporized with, bonded to, or incorporated within,adsorbed or absorbed in, or on, one or more supports or carriers.

[0407] The support material is any of the conventional supportmaterials. Preferably the supported material is a porous supportmaterial, for example, talc, inorganic oxides and inorganic chlorides.Other support materials include resinous support materials such aspolystyrene, functionalized or crosslinked organic supports, such aspolystyrene divinyl benzene polyolefins or polymeric compounds,zeolites, clays, or any other organic or inorganic support material andthe like, or mixtures thereof.

[0408] The preferred support materials are inorganic oxides that includethose Group 2, 3, 4, 5, 13 or 14 metal oxides. The preferred supportsinclude silica, which may or may not be dehydrated, fumed silica,alumina (WO 99/60033), silica-alumina and mixtures thereof. Other usefulsupports include magnesia, titania, zirconia, magnesium chloride (U.S.Pat. No. 5,965,477), montmorillonite (European Patent EP-B 1 0 511 665),phyllosilicate, zeolites, talc, clays (U.S. Pat. No. 6,034,187) and thelike. Also, combinations of these support materials may be used, forexample, silica-chromium, silica-alumina, silica-titania and the like.Additional support materials may include those porous acrylic polymersdescribed in EP 0 767 184 B1, which is incorporated herein by reference.Other support materials include nanocomposites as described in PCT WO99/47598, aerogels as described in WO 99/48605, spherulites as describedin U.S. Pat. No. 5,972,510 and polymeric beads as described in WO99/50311, which are all herein incorporated by reference.

[0409] It is preferred that the support material, most preferably aninorganic oxide, has a surface area in the range of from about 10 toabout 700 m²/g, pore volume in the range of from about 0.1 to about 4.0cc/g and average particle size in the range of from about 5 to about 500μm. More preferably, the surface area of the support material is in therange of from about 50 to about 500 m²/g, pore volume of from about 0.5to about 3.5 cc/g and average particle size of from about 10 to about200 μm. Most preferably the surface area of the support material is inthe range is from about 100 to about 400 m²/g, pore volume from about0.8 to about 3.0 cc/g and average particle size is from about 5 to about100 μm. The average pore size of the carrier useful in the inventiontypically has pore size in the range of from 10 to 1000 Å, preferably 50to about 500 Å, and most preferably 75 to about 350 Å.

[0410] As is well known in the art, the catalysts may also be supportedtogether on one inert support, or the catalysts may be independentlyplaced on two inert supports and subsequently mixed. Of the two methods,the former is preferred.

[0411] In another embodiment the support may comprise one or more typesof support material which may be treated differently. For example onecould use tow different silicas that had different proe volumes or hadbeen calcined at different temperatures. Likewise one could use a silicatht had been treated with a scavenger or other additive and a silicathat had not.

[0412] The stereospecific catalysts may be used to prepare macromonomerhaving a Mw of 100,000 or less and a crystallinity of 30% or morepreferably having vinyl termini. As a specific example, a method forpreparing propylene-based macromonomers having a high percentage ofvinyl terminal bonds involves: a) contacting, in solution, propylene,optionally a minor amount of copolymerizable monomer, with a catalystcomposition containing the stereorigid, activated transition metalcatalyst compound at a temperature from about 80° C. to about 140° C.;and b) recovering isotactic or syndiotactic polypropylene chains havingnumber average molecular weights of about 2,000 to about 30,000 Daltons.Preferably, the solution comprises a hydrocarbon solvent. Morepreferably, the hydrocarbon solvent is aliphatic or aromatic. Also, thepropylene monomers are preferably contacted at a temperature from 90° C.to 120° C. More preferably, a temperature from 95° C. to 115° C. isused. Most preferably, the propylene monomers are contacted at atemperature from 100° C. to 110° C. Reactor pressure generally can varyfrom atmospheric to 345 MPa, preferably to 182 MPa. The reactions can berun in batch or in continuous mode. Conditions for suitable slurry-typereactions will also be suitable and are similar to solution conditions,the polymerization typically being run in liquid propylene underpressures suitable to such.

[0413] The catalyst pair selection criteria were discussed earlier. Onecatalyst typically is stereospecific with the ability to producesignificant population of vinyl-terminated macromonomers, the othertypically is aspecific and capable of incorporating the reactivemacromonomers. In general it is believed that C2 symmetric bulky ligandmetallocene catalysts can produce vinyl terminated isotacticpolypropylene macromonomers. Catalysts that favor betamethyl-eliminationalso often appear to also favor isotactic polypropylene macromonomerformation. Rac-dimethylsilyl bis(indenyl)hafnium dimethyl, dimethylsilylbis(2-methyl-4-phenylindenyl)zirconium dichloride, and rac-ethylenebis(4,7-dimethylindenyl)hafnium dimethyl are catalysts capable ofproducing isotactic polypropylene having high vinyl chain terminationfor use in this invention. High temperatures, typically above 80° C.,appear to positively influence vinyl termination. Likewise,Me₂Si(Me₄C₅)(N-c-C₁₂H₂₃)TiMe₂ and Me₂Si(Me₄C₅)(N-c-C₁₂H₂₃)TiMe₂ produceamorphous polypropylene useful in this invention and are believed toincorporate the vinyl terminated macromonomers to also produce a graftedstructure of scPP side chains on an amorphous backbone.

[0414] In alternate embodiments dienes such as 1,9-decadiene areintroduced into the reaction zone to promote the production ofvinyl-terminated aPP and scPP macromonomers that help increase thepopulation of branch-block species.

[0415] Polymerization Processes

[0416] The catalysts and catalyst systems described above are suitablefor use in a solution, bulk, gas or slurry polymerization process or acombination thereof, preferably solution phase or bulk phasepolymerization process.

[0417] In one embodiment, this invention is directed toward thesolution, bulk, slurry or gas phase polymerization reactions involvingthe polymerization of one or more of monomers having from 3 to 30 carbonatoms, preferably 3-12 carbon atoms, and more preferably 3 to 8 carbonatoms. Preferred monomers include one or more of propylene, butene-1,pentene-1,4-methyl-pentene-1, hexene-1, octene-1,decene-1,3-methyl-pentene-1, and cyclic olefins or a combinationthereof. Other monomers can include vinyl monomers, diolefins such asdienes, polyenes, norbornene, norbornadiene, vinyl norbornene,ethylidene norbornene monomers. Preferably a homopolymer or copolymer ofpropylene is produced. In another embodiment, both a homopolymer ofpropylene and a copolymer of propylene and one or more of the monomerslisted above are produced.

[0418] One or more reactors in series or in parallel may be used in thepresent invention. Catalyst component and activator may be delivered asa solution or slurry, either separately to the reactor, activatedin-line just prior to the reactor, or preactivated and pumped as anactivated solution or slurry to the reactor. A preferred operation istwo solutions activated in-line. For more information on methods tointroduce multiple catalsyts into reactors, please see U.S. Pat. No.6,399,722, and WO0130862A1. While these references may emphasize gasphase reactors, the techniques described are equally applicable to othertypes of reactors, including continuous stirred tank reactors, slurryloop reactors and the like. Polymerizations are carried out in eithersingle reactor operation, in which monomer, comonomers,catalyst/activator, scavenger, and optional modifiers are addedcontinuously to a single reactor or in series reactor operation, inwhich the above components are added to each of two or more reactorsconnected in series. The catalyst components can be added to the firstreactor in the series. The catalyst component may also be added to bothreactors, with one component being added to first reaction and anothercomponent to other reactors.

[0419] In one embodiment 500 ppm or less of hydrogen is added to thepolymerization, or 400 ppm or less, or 300 ppm or less. In otherembodiments at least 50 ppm of hydrogen is added to the polymerization,or 100 ppm or more, or 150 ppm or more.

[0420] Gas Phase Polymerization

[0421] Generally, in a fluidized gas bed process used for producingpolymers, a gaseous stream containing one or more monomers iscontinuously cycled through a fluidized bed in the presence of acatalyst under reactive conditions. The gaseous stream is withdrawn fromthe fluidized bed and recycled back into the reactor. Simultaneously,polymer product is withdrawn from the reactor and fresh monomer is addedto replace the polymerized monomer. (See for example U.S. Pat. Nos.4,543,399, 4,588,790, 5,028,670, 5,317,036, 5,352,749, 5,405,922,5,436,304, 5,453,471, 5,462,999, 5,616,661 and 5,668,228 all of whichare fully incorporated herein by reference.)

[0422] Slurry Phase Polymerization

[0423] A slurry polymerization process generally operates between 1 toabout 50 atmosphere pressure range (15 psi to 735 psi, 103 kPa to 5068kPa) or even greater and temperatures in the range of 0° C. to about120° C. In a slurry polymerization, a suspension of solid, particulatepolymer is formed in a liquid polymerization diluent medium to whichmonomer and comonomers along with catalyst are added. The suspensionincluding diluent is intermittently or continuously removed from thereactor where the volatile components are separated from the polymer andrecycled, optionally after a distillation, to the reactor. The liquiddiluent employed in the polymerization medium is typically an alkanehaving from 3 to 7 carbon atoms, preferably a branched alkane. Themedium employed should be liquid under the conditions of polymerizationand relatively inert. When a propane medium is used the process must beoperated above the reaction diluent critical temperature and pressure.Preferably, a hexane or an isobutane medium is employed.

[0424] In one embodiment, a preferred polymerization technique useful inthe invention is referred to as a particle form polymerization, or aslurry process where the temperature is kept below the temperature atwhich the polymer goes into solution. Such technique is well known inthe art, and described in for instance U.S. Pat. No. 3,248,179 which isfully incorporated herein by reference. The preferred temperature in theparticle form process is within the range of about 85° C. to about 110°C. Two preferred polymerization methods for the slurry process are thoseemploying a loop reactor and those utilizing a plurality of stirredreactors in series, parallel, or combinations thereof. Non-limitingexamples of slurry processes include continuous loop or stirred tankprocesses. Also, other examples of slurry processes are described inU.S. Pat. No. 4,613,484, which is herein fully incorporated byreference.

[0425] In another embodiment, the slurry process is carried outcontinuously in a loop reactor. The catalyst, as a slurry in isobutaneor as a dry free flowing powder, is injected regularly to the reactorloop, which is itself filled with circulating slurry of growing polymerparticles in a diluent of isobutane containing monomer and comonomer.Hydrogen, optionally, may be added as a molecular weight control. (Inone embodiment 500 ppm or less of hydrogen is added, or 400 ppm or lessor 300 ppm or less. In other embodiments at least 50 ppm of hydrogen isadded, or 100 ppm or more, or 150 ppm or more.)

[0426] The reactor is maintained at a pressure of 3620 kPa to 4309 kPaand at a temperature in the range of about 60° C. to about 104° C.depending on the desired polymer melting characterisitcs. Reaction heatis removed through the loop wall since much of the reactor is in theform of a double-jacketed pipe. The slurry is allowed to exit thereactor at regular intervals or continuously to a heated low pressureflash vessel, rotary dryer and a nitrogen purge column in sequence forremoval of the isobutane diluent and all unreacted monomer andcomonomers. The resulting hydrocarbon free powder is then compounded foruse in various applications.

[0427] In another embodiment, the reactor used in the slurry processuseful in the invention is capable of and the process useful in theinvention is producing greater than 2000 lbs of polymer per hour (907Kg/hr), more preferably greater than 5000 lbs/hr (2268 Kg/hr), and mostpreferably greater than 10,000 lbs/hr (4540 Kg/hr). In anotherembodiment the slurry reactor used in the process useful in theinvention is producing greater than 15,000 lbs of polymer per hour (6804Kg/hr), preferably greater than 25,000 lbs/hr (11,340 Kg/hr) to about100,000 lbs/hr (45,500 Kg/hr).

[0428] In another embodiment in the slurry process useful in theinvention the total reactor pressure is in the range of from 400 psig(2758 kPa) to 800 psig (5516 kPa), preferably 450 psig (3103 kPa) toabout 700 psig (4827 kPa), more preferably 500 psig (3448 kPa) to about650 psig (4482 kPa), most preferably from about 525 psig (3620 kPa) to625 psig (4309 kPa).

[0429] In yet another embodiment in the slurry process useful in theinvention the concentration of predominant monomer in the reactor liquidmedium is in the range of from about 1 to 10 weight percent, preferablyfrom about 2 to about 7 weight percent, more preferably from about 2.5to about 6 weight percent, most preferably from about 3 to about 6weight percent.

[0430] Another process useful in the invention is where the process,preferably a slurry process is operated in the absence of or essentiallyfree of any scavengers, such as triethylaluminum, trimethylaluminum,tri-isobutylaluminum and tri-n-hexylaluminum and diethyl aluminumchloride, dibutyl zinc and the like. This process is described in PCTpublication WO 96/08520 and U.S. Pat. No. 5,712,352, which are hereinfully incorporated by reference.

[0431] In another embodiment the process is run with scavengers. Typicalscavengers include trimethyl aluminum, tri-isobutyl aluminum and anexcess of alumoxane or modified alumoxane.

[0432] Homgeneous, Bulk, or Solution Phase Polymerization

[0433] The catalysts described herein can be used advantageously inhomogeneous solution processes. Generally this involves polymerizationin a continuous reactor in which the polymer formed and the startingmonomer and catalyst materials supplied, are agitated to reduce or avoidconcentration gradients. Suitable processes operate above the meltingpoint of the polymers at high pressures, from 1 to 3000 bar (10-30,000MPa), in which the monomer acts as diluent or in solution polymerizationusing a solvent.

[0434] Temperature control in the reactor is obtained by balancing theheat of polymerization with reactor cooling by reactor jackets orcooling coils to cool the contents of the reactor, auto refrigeration,pre-chilled feeds, vaporization of liquid medium (diluent, monomers orsolvent) or combinations of all three. Adiabatic reactors withpre-chilled feeds may also be used. The reactor temperature depends onthe catalyst used. In general, the reactor temperature preferably canvary between about 30° C. and about 160° C., more preferably from about90° C. to about 150° C., and most preferably from about 100° C. to about140° C. Polymerization temperature may vary depending on catalystchoice. For example a diimine Ni catalyst may be used at 40° C., while ametallocene Ti catalyst can be used at 100° C. or more. In seriesoperation, the second reactor temperature is preferably higher than thefirst reactor temperature. In parallel reactor operation, thetemperatures of the two reactors are independent. The pressure can varyfrom about 1 mm Hg to 2500 bar (25,000 MPa), preferably from 0.1 bar to1600 bar (1-16,000 MPa), most preferably from 1.0 to 500 bar (10-5000MPa).

[0435] In one embodiment 500 ppm or less of hydrogen is added to thepolymerization, or 400 ppm or less or 300 ppm or less. In otherembodiments at least 50 ppm of hydrogen is added to the polymerization,or 100 ppm or more, or 150 ppm or more.

[0436] Each of these processes may also be employed in single reactor,parallel or series reactor configurations. The liquid processes comprisecontacting olefin monomers with the above described catalyst system in asuitable diluent or solvent and allowing said monomers to react for asufficient time to produce the desired polymers. Hydrocarbon solventsare suitable, both aliphatic and aromatic. Alkanes, such as hexane,pentane, isopentane, and octane, are preferred.

[0437] The process can be carried out in a continuous stirred tankreactor, batch reactor or plug flow reactor, or more than one reactoroperated in series or parallel. These reactors may have or may not haveinternal cooling or heating and the monomer feed may or may not berefrigerated. See the general disclosure of U.S. Pat. No. 5,001,205 forgeneral process conditions. See also, international application WO96/33227 and WO 97/22639. All documents are incorporated by referencefor US purposes for description of polymerization processes, metalloceneselection and useful scavenging compounds.

[0438] This invention further relates to a continuous process to preparean adhesive comprising:

[0439] 1) combining monomer, optional solvent, catalyst and activator ina reactor system,

[0440] 2) withdrawing polymer solution from the reactor system,

[0441] 3) removing at least 10% solvent, if present, from the polymersolution,

[0442] 4) quenching the reaction,

[0443] 5) devolatilizing the polymer solution to form molten polymer,

[0444] 6) combining the molten polymer and one or more additives (suchas those described below) in a static mixer (in a preferred embodimenttackifer is not added or is added in amounts of less than 30 weight %,preferably less than 20 weight %, more preferably in amonts of less than10 weight %),

[0445] 7) removing the polymer combination from the static mixer, and

[0446] 8) pelletizing or drumming the polymer combination; where step 1)comprises any of the processes described above.

[0447] In another embodiment this invention relates to a continuousprocess to prepare an adhesive comprising:

[0448] 1) combining monomer, optional solvent, catalyst and activator ina reactor system,

[0449] 2) withdrawing polymer solution from the reactor system,

[0450] 3) removing at least 10% solvent, if present, from the polymersolution,

[0451] 4) quenching the reaction,

[0452] 5) devolatilizing the polymer solution to form molten polymer,

[0453] 6) combining the molten polymer and one or more additives in astatic mixer,

[0454] 7) removing the polymer combination from the static mixer, and

[0455] 8) pelletizing or drumming the polymer combination.

[0456] In a particularly preferred embodiment, this invention relates toa continuous process to make an adhesive comprising

[0457] 1) selecting a first catalyst component capable of producing apolymer having an Mw of 100,000 or less and a crystallinity of 20%(preferably 5% or less) or less under selected polymerizationconditions;

[0458] 2) selecting a second catalyst component capable of producingpolymer having an Mw of 100,000 or less and a crystallinity of 20% ormore, (preferably 40% or more) at the selected polymerizationconditions;

[0459] 3) contacting, in a solvent and in a reaction zone under theselected polymerization conditions, the catalyst components in thepresence of one or more activators with one or more C3 to C40 olefins,and, optionally one or more diolefins;

[0460] 4) at a temperature of greater than 70° C. (preferably greaterthan 100° C.);

[0461] 5) at a residence time of 120 minutes or less, (preferably 60minutes or less, more preferably 30 minutes or less);

[0462] 6) wherein the ratio of the first catalyst to the second catalystis from 1:1 to 50:1 (preferably 30:1);

[0463] 7) wherein the activity of the catalyst components is at least 50kilograms of polymer per gram of the catalyst components; and wherein atleast 20% of the olefins are converted to polymer;

[0464] 8) withdrawing polymer solution from the reaction zone;

[0465] 9) removing at least 10% solvent from the polymer solution;

[0466] 10) quenching the reaction;

[0467] 11) devolatilizing the polymer solution to form molten polymer;

[0468] 12) combining the molten polymer and one or more additives in astatic mixer;

[0469] 13) removing the polymer combination from the static mixer; and

[0470] 14) pelletizing or drumming the polymer combination.

[0471] In a particularly preferred embodiment, this invention relates toa continuous process to make an adhesive comprising

[0472] 1) selecting a first catalyst component capable of producing apolymer having an Mw of 100,000 or less and a crystallinity of 20% orless (preferably 5% or less) under selected polymerization conditions;

[0473] 2) selecting a second catalyst component capable of producingpolymer having an Mw of 100,000 or less and a crystallinity of 20% ormore (preferably 40% or more) at the selected polymerization conditions;

[0474] 3) contacting, in a solvent and in a reaction zone under theselected polymerization conditions, the catalyst components in thepresence of one or more activators with one or more C3 to C40 olefins,and, optionally one or more diolefins;

[0475] 4) at a temperature of greater than 70° C., (preferably greaterthan 100° C.);

[0476] 5) at a residence time of 30 minutes or less;

[0477] 6) wherein the ratio of the first catalyst to the second catalystis from 1:1 to 50:1 (Preferably 30:1);

[0478] 7) wherein the activity of the catalyst components is at least 50kilograms of polymer per gram of the catalyst components; and wherein atleast 50% of the olefins are converted to polymer;

[0479] 8) withdrawing polymer solution from the reaction zone;

[0480] 9) removing at least 10% solvent from the polymer solution;

[0481] 10) quenching the reaction;

[0482] 11) forming molten polymer where the polymer comprises one ormore C3 to C40 olefins, and less than 50 mole % of ethylene, and wherethe polymer has:

[0483] a) a Dot T-Peel of 1 Newton or more; and

[0484] b) a branching index (g′) of 0.95 or less measured at the Mz ofthe polymer; and

[0485] c) an Mw of 100,000 or less; and

[0486] 12) combining the molten polymer and one or more additives in astatic mixer;

[0487] 13) removing the polymer combination from the static mixer; and

[0488] 14) pelletizing or drumming the polymer combination.

[0489] In a particularly preferred embodiment, this invention relates toa continuous process to make an adhesive comprising

[0490] 1) selecting a first catalyst component capable of producing apolymer having an Mw of 100,000 or less and a crystallinity of 20% orless under selected polymerization conditions;

[0491] 2) selecting a second catalyst component capable of producingpolymer having an Mw of 100,000 or less and a crystallinity of 40% ormore at the selected polymerization conditions;

[0492] 3) contacting, in a solvent and in a reaction zone under theselected polymerization conditions, the catalyst components in thepresence of one or more activators with one or more C3 to C40 olefins,and, optionally one or more diolefins;

[0493] 4) at a temperature of greater than 100° C.;

[0494] 5) at a residence time of 30 minutes or less;

[0495] 6) wherein the ratio of the first catalyst to the second catalystis from 1:1 to 30:1;

[0496] 7) wherein the activity of the catalyst components is at least 50kilograms of polymer per gram of the catalyst components; and wherein atleast 50% of the olefins are converted to polymer;

[0497] 8) withdrawing polymer solution from the reaction zone;

[0498] 9) removing at least 10% solvent from the polymer solution;

[0499] 10) quenching the reaction;

[0500] 11) forming molten polymer

[0501] where the polymer comprises one or more C3 to C40 olefins(preferably propylene), and less than 50 mole % of ethylene, and wherethe polymer has:

[0502] a) a Dot T-Peel of 3 Newton or more; and

[0503] b) a branching index (g′) of 0.90 or less measured at the Mz ofthe polymer; and

[0504] c) an Mw of 30,000 or less;

[0505] d) a peak melting point between 60 and 190° C.,

[0506] e) a Heat of fusion of 1 to 70 J/g,

[0507] f) a melt viscosity of 8000 mPa.sec or less at 190° C.; and

[0508] 12) combining the molten polymer and one or more additives in astatic mixer;

[0509] 13) removing the polymer combination from the static mixer; and

[0510] 14) pelletizing or drumming the polymer combination.

[0511] In another embodiment this invention relates to a continuousprocess to prepare an adhesive comprising:

[0512] 1) combining monomer, catalyst and activator in a reactor system,

[0513] 2) withdrawing polymer from the reactor system,

[0514] 3) quenching the reaction,

[0515] 4) forming molten polymer,

[0516] 5) combining the molten polymer and one or more additives, and

[0517] 6) pelletizing or drumming the polymer combination.

[0518] Formulations of the Polymers

[0519] The polymers produced herein then can be used directly as anadhesive or blended with other components to form an adhesive.

[0520] Tackifiers are typically not needed with the polymers of thisinvention. However if tackifier is desired, the tackifiers that may beblended with the polymers described above are those typically used inthe art. Examples include, but are not limited to, aliphatic hydrocarbonresins, aromatic modified aliphatic hydrocarbon resins, hydrogenatedpolycyclopentadiene resins, polycyclopentadiene resins, gum rosins, gumrosin esters, wood rosins, wood rosin esters, tall oil rosins, tall oilrosin esters, polyterpenes, aromatic modified polyterpenes, terpenephenolics, aromatic modified hydrogenated polycyclopentadiene resins,hydrogenated aliphatic resin, hydrogenated aliphatic aromatic resins,hydrogenated terpenes and modified terpenes, and hydrogenated rosinesters. In some embodiments the tackifier is hydrogenated. In otherembodiments the tackifier is non-polar. (Non-polar meaning that thetackifier is substantially free of monomers having polar groups.Preferably the polar groups are not present, however if they arepreferably they are not present at more that 5 weight %, preferably notmore that 2 weight %, even more preferably no more than 0.5 weight %.)In some embodiments the tackifier has a softening point (Ring and Ball,as measured by ASTM E-28) of 80° C. to 150° C., preferably 100° C. to130° C.

[0521] The tackifier, if present, is typically present at about 1 weight% to about 80 weight %, based upon the weight of the blend, morepreferably 2 weight % to 40 weight %, even more preferably 3 weight % to30 weight %.

[0522] Preferred hydrocarbon resins for use as tackifiers or modifiersinclude:

[0523] 1. Resins such as C5/C6 terpene resins, styrene terpenes,alpha-methyl styrene terpene resins, C9 terpene resins, aromaticmodified C5/C6, aromatic modified cyclic resins, aromatic modifieddicyclopentadiene based resins or mixtures thereof Additional preferredresins include those described in WO 91/07472, U.S. Pat. No. 5,571,867,U.S. Pat. No. 5,171,793 and U.S. Pat. No. 4,078,132. Typically theseresins are obtained from the cationic polymerization of compositionscontaining one or more of the following monomers: C5 diolefins (such as1-3 pentadiene, isoprene, etc); C5 olefins (such as 2-methylbutenes,cyclopentene, etc.); C6 olefins (such as hexene), C9 vinylaromatics(such as styrene, alpha methyl styrene, vinyltoluene, indene, methylindene, etc. ); cyclics (such as dicyclopentadiene,methyldicyclopentadiene, etc.); and or terpenes (such as limonene,carene, etc).

[0524] 2. Resins obtained by the thermal polymerization ofdicyclopentadiene, and/or the thermal polymerization of dimers oroligomers of cyclopentadiene and/or methylcyclopentadiene, optionallywith vinylaromatics (such as styrene, alpha-methyl styrene, vinyltoluene, indene, methyl indene). The resins obtained afterpolymerization and separation of unreacted materials, can behydrogenated if desired. Examples of preferred resins include thosedescribed in U.S. Pat. No. 4,078,132; WO 91/07472; U.S. Pat. No.4,994,516; EP 0 046 344 A; EP 0 082 726 A; and U.S. Pat. No. 5,171,793.

[0525] In another embodiment an adhesive composition comprising polymerproduct of this invention further comprises a crosslinking agent.Preferred crosslinking agents include those having functional groupsthat can react with the acid or anhydride group. Preferred crosslinkingagents include alcohols, multiols, amines, diamines and/or triamines.Examples of crosslinking agents useful in this invention includepolyamines such as ethylenediamine, diethylenetriamine,hexamethylenediamine, diethylaminopropylamine, and/or menthanediamine.

[0526] In another embodiment an adhesive composition comprising thepolymer product of this invention further comprises typical additivesknown in the art such as fillers, antioxidants, adjuvants, adhesionpromoters, oils, and/or plasticizers. Preferred fillers include titaniumdioxide, calcium carbonate, barium sulfate, silica, silicon dioxide,carbon black, sand, glass beads, mineral aggregates, talc, clay and thelike. Preferred antioxidants include phenolic antioxidants, such asIrganox 1010, Irganox, 1076 both available from Ciba-Geigy. Preferredoils include paraffinic or napthenic oils such as Primol 3 52, or Primol876 available from ExxonMobil Chemical France, S.A. in Paris, France.Preferred plasticizers include polybutenes, such as Parapol 950 andParapol 1300 available from ExxonMobil Chemical Company in HoustonTexas. Other preferred additives include block, antiblock, pigments,processing aids, UV stabilizers, neutralizers, lubricants, surfactantsand/or nucleating agents may also be present in one or more than onelayer in the films. Preferred additives include silicon dioxide,titanium dioxide, polydimethylsiloxane, talc, dyes, wax, calciumsterate, carbon black, low molecular weight resins and glass beads.Preferred adhesion promoters include polar acids, polyaminoamides (suchas Versamid 115, 125, 140, available from Henkel), urethanes (such asisocyanate/hydroxy terminated polyester systems, e.g. bonding agentTN/Mondur Cb-75(Miles, Inc.), coupling agents, (such as silane esters(Z-6020 from Dow Coming)), titanate esters (such as Kr-44 available fromKenrich), reactive acrylate monomers (such as sarbox SB-600 fromSartomer), metal acid salts (such as Saret 633 from Sartomer),polyphenylene oxide, oxidized polyolefins, acid modified polyolefins,and anhydride modified polyolefins.

[0527] In another embodiment the polymers of this invention are combinedwith less than 3 wt % anti-oxidant, less than 3 wt % flow improver, lessthan 10 wt % wax, and or less than 3 wt % crystallization aid.

[0528] Other optional components that may be combined with the polymerproduct of this invention are plasticizers or other additives such asoils, surfactants, fillers, color masterbatches, and the like. Preferredplasticizers include mineral oils, polybutenes, phthalates and the like.Particularly preferred plasticizers include phthalates such asdiisoundecyl phthalate (DIUP), diisononylphthalate (DMNP),dioctylphthalates (DOP) and the like. Particularly preferred oilsinclude aliphatic naphthenic oils.

[0529] Other optional components that may be combined with the polymerproduct of this invention are low molecular weight products such as wax,oil or low Mn polymer, (low meaning below Mn of 5000, preferably below4000, more preferably below 3000, even more preferably below 2500).Preferred waxes include polar or non-polar waxes, functionalized waxes,polypropylene waxes, polyethylene waxes, and wax modifiers. Preferredwaxes include ESCOMER™ 101. Preferred functionalized waxes include thosemodified with an alcohol, an acid, a ketone, an anhydride and the like.Preferred examples include waxes modified by methyl ketone, maleicanhydride or maleic acid. Preferred oils include aliphatic napthenicoils, white oils or the like. Preferred low Mn polymers include polymersof lower alpha olefins such as propylene, butene, pentene, hexene andthe like. A particularly preferred polymer includes polybutene having anMn of less than 1000. An example of such a polymer is available underthe trade name PARAPOL™ 950 from ExxonMobil Chemical Company. PARAPOL™950 is a liquid polybutene polymer having an Mn of 950 and a kinematicviscosity of 220 cSt at 100° C., as measured by ASTM D 445. In someembodiments the polar and non-polar waxes are used together in the samecomposition.

[0530] In some embodiments, however, wax may not be desired and ispresent at less than 5 weight % , preferably less than 3 weight %, morepreferably less than 1 weight %, more preferably less than 0.5 weight %,based upon the weight of the composition.

[0531] In another embodiment the polymers of this invention have lessthan 30 weight % total of any combination of additives described above,preferably less than 25 weight %, preferably less than 20 weight %,preferably less than 15 weight %, preferably less than 10 weight %,preferably less than 5 weight %, based upon the weight of the polymerand the additives.

[0532] In another embodiment the polymer produced by this invention maybe blended with elastomers (preferred elastomers include all natural andsynthetic rubbers, including those defined in ASTM D1566). In apreferred embodiment elastomers are blended with the polymer produced bythis invention to form rubber toughened compositions. In a particularlypreferred embodiment the rubber toughened composition is a two (or more)phase system where the rubber is a discontinuous phase and the polymeris a continuous phase. Examples of preferred elastomers include one ormore of the following: ethylene propylene rubber, ethylene propylenediene monomer rubber, neoprene rubber, styrenic block copolymer rubbers(including SI, SIS, SB, SBS, SIBS and the like), butyl rubber, halobutylrubber, copolymers of isobutylene and para-alkylstyrene, halogenatedcopolymers of isobutylene and para-alkylstyrene. This blend may becombined with the tackifiers and/or other additives as described above.

[0533] In another embodiment the polymer produced by this invention maybe blended with impact copolymers. Impact copolymers are defined to be ablend of isotactic PP and an elastomer such as an ethylene-propylenerubber. In a preferred embodiment the blend is a two (or more) phasesystem where the impact copolymer is a discontinuous phase and thepolymer is a continuous phase.

[0534] In another embodiment the polymer produced by this invention maybe blended with ester polymers. In a preferred embodiment the blend is atwo (or more) phase system where the polyester is a discontinuous phaseand the polymer is a continuous phase.

[0535] In a preferred embodiment the polymers of the invention describedabove are combined with metallocene polyethylenes (mPE's) or metallocenepolypropylenes (mPP's). The mPE and mPP homopolymers or copolymers aretypically produced using mono- or bis-cyclopentadienyl transition metalcatalysts in combination with an activator of alumoxane and/or anon-coordinating anion in solution, slurry, high pressure or gas phase.The catalyst and activator may be supported or unsupported and thecyclopentadienyl rings by may substituted or unsubstituted. Severalcommercial products produced with such catalyst/activator combinationsare commercially available from ExxonMobil Chemical Company in Baytown,Tex. under the tradenames EXCEED™, ACHIEVE™ and EXACT™. For moreinformation on the methods and catalysts/activators to produce such mPEhomopolymers and copolymers see WO 94/26816; WO 94/03506; EPA 277,003;EPA 277,004; U.S. Pat. No. 5,153,157; U.S. Pat. No. 5,198,401; U.S. Pat.No. 5,240,894; U.S. Pat. No. 5,017,714; CA 1,268,753; U.S. Pat. No.5,324,800; EPA 129,368; U.S. Pat. No. 5,264,405; EPA 520,732; WO 9200333; U.S. Pat. No. 5,096,867; U.S. Pat. No. 5,507,475; EPA 426 637;EPA 573 403; EPA 520 732; EPA 495 375; EPA 500 944; EPA 570 982;WO91/09882; WO94/03506 and U.S. Pat. No. 5,055,438.

[0536] In another embodiment the olefin polymer of this invention,preferably the polypropylene homopolymer or copolymer of this invention,can be blended with another homopolymer and/or copolymer, including butnot limited to, homopolypropylene, propylene copolymerized with up to 50weight % of ethylene or a C4 to C20 alpha.-olefin, isotacticpolypropylene, highly isotactic polypropylene, syndiotacticpolypropylene, random copolymer of propylene and ethylene and/or buteneand/or hexene, polybutene, ethylene vinyl acetate, low densitypolyethylene (density 0.915 to less than 0.935 g/cm³) linear low densitypolyethylene, ultra low density polyethylene (density 0.86 to less than0.90 g/cm³), very low density polyethylene (density 0.90 to less than0.915 g/cm³), medium density polyethylene (density 0.935 to less than0.945 g/cm³), high density polyethylene (density 0.945 to 0.98 g/cm³),ethylene vinyl acetate, ethylene methyl acrylate, copolymers of acrylicacid, polymethylmethacrylate or any other polymers polymerizable by ahigh-pressure free radical process, polyvinylchloride, polybutene-1,isotactic polybutene, ABS resins, elastomers such as ethylene-propylenerubber (EPR), vulcanized EPR, EPDM, block copolymer elastomers such asSBS, nylons (polyamides), polycarbonates, PET resins, crosslinkedpolyethylene, copolymers of ethylene and vinyl alcohol (EVOH), polymersof aromatic monomers such as polystyrene, poly-1 esters, high molecularweight polyethylene having a density of 0.94 to 0.98 g/cm³ low molecularweight polyethylene having a density of 0.94 to 0.98 g/cm³, graftcopolymers generally, polyacrylonitrile homopolymer or copolymers,thermoplastic polyamides, polyacetal, polyvinylidine fluoride and otherfluorinated elastomers, polyethylene glycols and polyisobutylene.

[0537] In a preferred embodiment the olefin polymer of this invention,preferably the polypropylene polymer of this invention, is present inthe blend at from 10 to 99 weight %, based upon the weight of thepolymers in the blend, preferably 20 to 95 weight %, even morepreferably at least 30 to 90 weight %, even more preferably at least 40to 90 weight %, even more preferably at least 50 to 90 weight %, evenmore preferably at least 60 to 90 weight %, even more preferably atleast 70 to 90 weight %.

[0538] The blends described above may be produced by mixing the two ormore polymers together, by connecting reactors together in series tomake reactor blends or by using more than one catalyst in the samereactor to produce multiple species of polymer. The polymers can bemixed together prior to being put into the extruder or may be mixed inan extruder.

[0539] Any of the above polymers, including the polymers produced bythis invention, may be functionalized. Preferred functional groupsinclude maleic acid and maleic anhydride. By functionalized is meantthat the polymer has been contacted with an unsaturated acid oranhydride. Preferred unsaturated acids or anhydrides include anyunsaturated organic compound containing at least one double bond and atleast one carbonyl group. Representative acids include carboxylic acids,anhydrides, esters and their salts, both metallic and non-metallic.Preferably the organic compound contains an ethylenic unsaturationconjugated with a carbonyl group (—C═O). Examples include maleic,fumaric, acrylic, methacrylic, itaconic, crotonic, alpha.methylcrotonic, and cinnamic acids as well as their anhydrides, esters andsalt derivatives. Maleic anhydride is particularly preferred. Theunsaturated acid or anhydride is preferably present at about 0.1 weight% to about 10 weight %, preferably at about 0.5 weight % to about 7weight %, even more preferably at about 1 to about 4 weight %, basedupon the weight of the hydrocarbon resin and the unsaturated acid oranhydride.

[0540] In a preferred embodiment the unsaturated acid or anhydriedcomprises a carboxylic acid or a derivative thereof selected from thegroup consisting of unsaturated carboxylic acids, unsaturated carboxylicacid derivatives selected from esters, imides, amides, anhydrides andcyclic acid anhydrides or mixtures thereof.

[0541] Applications

[0542] The polymer product of this invention or formulations thereof maythen be applied directly to a substrate or may be sprayed thereon,typically the polymer is molten. Spraying is defined to includeatomizing, such as producing an even dot pattern, spiral spraying suchas Nordson Controlled Fiberization or oscillating a stretched filamentlike is done in the ITW Dynafiber/Omega heads or Summit technology fromNordson, as well as melt blown techniques. Melt blown techniques aredefined to include the methods described in U.S. Pat. No. 5,145,689 orany process where air streams are used to break up filaments of theextrudate and then used to deposit the broken filaments on a substrate.In general, melt blown techniques are processes that use air to spin hotmelt adhesive fibers and convey them onto a substrate for bonding.Fibers sizes can easily be controlled from 20-200 microns by changingthe melt to air ratio. Few, preferably no, stray fibers are generateddue to the inherent stability of adhesive melt blown applicators. UnderUV light the bonding appears as a regular, smooth, stretched dotpattern. Atomization is a process that uses air to atomize hot meltadhesive into very small dots and convey them onto a substrate forbonding.

[0543] Lamination Melt Coating

[0544] The adhesives of this invention can be used in any adhesiveapplication, including but not limited to, disposables, packaging,laminates, pressure sensitive adhesives, tapes labels, wood binding,paper binding, non-wovens, road marking, reflective coatings, and thelike.

[0545] In a preferred embodiment the adhesives of this invention can beused for disposable diaper and napkin chassis construction, elasticattachment in disposable goods converting, packaging, labeling,bookbinding, woodworking, and other assembly applications. Particularlypreferred applications include: baby diaper leg elastic, diaper frontaltape, diaper standing leg cuff, diaper chassis construction, diaper corestabilization, diaper liquid transfer layer, diaper outer coverlamination, diaper elastic cuff lamination, feminine napkin corestabilization, feminine napkin adhesive strip, industrial filtrationbonding, industrial filter material lamination, filter mask lamination,surgical gown lamination, surgical drape lamination, and perishableproducts packaging.

[0546] The adhesives described above may be applied to any substrate.Preferred substrates include wood, paper, cardboard, plastic,thermoplastic, rubber, metal, metal foil (such as aluminum foil and tinfoil), metallized surfaces, cloth, non-wovens (particularlypolypropylene spun bonded fibers or non-wovens), spunbonded fibers,cardboard, stone, plaster, glass (including silicon oxide(SiO_(x))coatings applied by evaporating silicon oxide onto a filmsurface), foam, rock, ceramics, films, polymer foams (such aspolyurethane foam), substrates coated with inks, dyes, pigments, PVDCand the like or combinations thereof.

[0547] Additional preferred substrates include polyethylene,polypropylene, polyacrylates, acrylics, polyethylene terephthalate, orany of the polymers listed above as suitable for blends.

[0548] Any of the above substrates, and/or the polymers of thisinvention, may be corona discharge treated, flame treated, electron beamirradiated, gamma irradiated, microwaved, or silanized.

[0549] The adhesives produced herein, when coated in some fashionbetween two adherends, preferably perform such that the materials areheld together in a sufficient fashion compared to a standardspecification or a standard adhesive similarly constructed.

[0550] The polymer product of this invention may be used in any adhesiveapplication described in WO 97/33921 in combination with the polymersdescribed therein or in place of the polymers described therein.

[0551] The polymer product of this invention, alone or in combinationwith other polymers and or additives, may also be used to form hook andloop fasteners as described in WO 02/35956.

[0552] In another embodiment this invention relates to:

[0553] 1. A continuous process to produce a branched olefin polymercomprising:

[0554] 1) selecting a first catalyst component capable of producing apolymer having an Mw of 100,000 or less and a crystallinity of 20% orless under selected polymerization conditions;

[0555] 2) selecting a second catalyst component capable of producingpolymer having an Mw of 100,000 or less and a crystallinity of 20% ormore at the selected polymerization conditions;

[0556] 3) contacting a catalyst component, one or more activators andone or more C2 to C40 olefins in a first reaction zone, at a temperatureof greater than 70° C., and at a residence time of 120 minutes or less;and

[0557] 4) transfering the contents of the first reaction zone to asecond reaction zone and further contacting the contents with a catalystcomponent, an activator and or one or more C2 to C40 olefins, at atemperature of greater than 70° C., and at a residence time of 120minutes or less; and

[0558] 5) optionally, transferring the contents of the second reactionzone to a third reaction zone and further contacting the contents with acatalyst compound, an activator and or one or more C2 to C40 olefins, ata temperature of greater than 70° C., and at a residence time of 120minutes or less; and

[0559] 6) recovering a branched olefin polymer comprising at least 50mole % of one or more C3 to C40 olefins,

[0560] where the first catalyst component is present in at least onereaction zone and the second catalyst component is present in a secondreaction zone and where in at least one reaction zone the C2 to C40olefin is a C3 to C40 alpha-olefin.

[0561] 2. The process of paragraph 1 wherein the olefin polymercomprises from 50 to 100 mole % of propylene.

[0562] 3. The process of paragraph 1 or 2 wherein the olefin polymer ishomopolypropylene.

[0563] 4. The process of claim 1 wherein the first catalyst componentcomprises a non-sterospecific metallocene catalyst compound.

[0564] 5. The process of any of the above paragraphs wherein the secondcatalyst component comprises a sterospecific metallocene catalystcompound.

[0565] 6. The process of any of the above paragraphs where propylene ispresent in the first reaction zone.

[0566] 7. The process of any of the above paragraphs where propylene ispresent in the second reaction zone.

[0567] 8. The process of any of the above paragraphs where propylene ispresent in the third reaction zone.

[0568] 9. The process of any of the above paragraphs where ethylene ispresent in the first reaction zone.

[0569] 10. The process of any of the above paragraphs where ethylene ispresent in the second reaction zone.

[0570] 11. The process of any of claims 2 to 10 where ethylene ispresent in the third reaction zone.

[0571] 12. The process of any of the above paragraphs wherein propyleneand ethylene are present in the first reaction zone.

[0572] 13. The process of any of claims 1 to 7 wherein propylene andethylene are present in the second reaction zone.

[0573] 14. The process of any of the above paragraphs where propylene ispresent in the first reaction zone at 100 weight %, based upon theweight of the monomers present.

[0574] 15. The process of any of the above paragraphs where propylene ispresent in the second reaction zone at 100 weight %, based upon theweight of the monomers present.

[0575] 16. The process of an of claims 2 to 15 where propylene ispresent in the third reaction zone at 100 weight %, based upon theweight of the monomers present.

[0576] 17. The process of any of the above paragraphs where propylene ispresent in the first reaction zone at 100 weight %, (based upon theweight of the monomers present in the first reaction zone) and ethyleneis present in the second reaction zone at up to 50 weight %, (based uponthe weight of the monomers present in the second reaction zone).

[0577] 18. The process of any of the above paragraphs where propyleneand ethylene are present in the the first reaction zone and no ethylene,other than residual ethylene monomer present in the contents of thefirst reaction zone, is introduced into the second reaction zone.

[0578] 19. The process of any of the above paragraphs where ethylene isintermittently introduced into one or more reaction zones.

[0579] 20. The process of any of the above paragraphs where ethylene ispresent in a reaction zone at less than 10 weight %, based upon theweight of the monomers in the reaction zone.

[0580] 21. The process of any of the above paragraphs wherein propyleneis present in the first reaction zone, ethylene is present in the secondreaction zone, the second catalyst component is present in the firstreaction zone, and the first catalyst component is present in the secondreaction zone.

[0581] 22. The process of any of claims 1 to 20 wherein propylene ispresent in the first reaction zone, propylene and ethylene are presentin the second reaction zone, the second catalyst component is present inthe first reaction zone, and the first catalyst component is present inthe second reaction zone.

[0582] 23. The process of any of claims 1 to 20 wherein propylene andethylene are present in the first reaction zone, propylene is present inthe second reaction zone, the first catalyst component is present in thefirst reaction zone, and the second catalyst component is present in thesecond reaction zone.

[0583] 24. The process of any of claims 1 to 20 wherein propylene ispresent in the first reaction zone, propylene and ethylene are presentin the second reaction zone, the second catalyst component is present inthe first reaction zone, and the second catalyst component is present inthe second reaction zone.

[0584] 25. The process of any of claims 1 to 20 wherein ethylene ispresent in the first reaction zone, propylene is present in the secondreaction zone, propylene is present in the third reaction zone, thefirst catalyst component is present in the second reaction zone, and thesecond catalyst component is present in the third reaction zone, and thecatalyst compound present in the first reaction zone is capable ofproducing polymer having an Mw of 20,000 or less and a crystallinity of10% or less at the selected polymerization conditions.

[0585] 26. The process of claim 1 wherein

[0586] 1) the first catalyst component comprises a non-sterospecificmetallocene catalyst compound;

[0587] 2) the second catalyst component comprises a sterospecificmetallocene catalyst compound,

[0588] 3) the first reaction zone is a reactor comprising solvent,monomer, catalyst compound and activator at a temperature of greaterthan 70° C.; and

[0589] 4) The second reaction zone is a reactor comprising solvent,monomer, catalyst compound and activator at a temperature of greaterthan 70° C.;

[0590] 27. The process of any of the above paragraphs where the catalystcompound capable of producing polymer having an Mw of 10,000 or less anda crystallinity of 10% or less is selected from the group consisting of:rac-dimethylsilylbis(4,7-dimethylindenyl)hafnium dichloride,rac-dimethylsilylbis(4,7-dimethylindenyl)hafnium dimethyl,rac-dimethylsilylbis(4,7-dimethylindenyl)zirconium dichloride,rac-dimethylsilylbis(4,7-dimethylindenyl)zirconium dimethyl,rac-dimethylsilylbis(indenyl)hafnium dichloride,rac-dimethylsilylbis(indenyl) hafnium dimethyl,rac-dimethylsilylbis(indenyl)zirconium dichloride,rac-dimethylsilylbis(indenyl)zirconium dimethyl,rac-dimethylsilylbis(tetrahydroindenyl)hafnium dichloride,rac-dimethylsilylbis(tetrahydroindenyl)hafnium dimethyl,rac-dimethylsilylbis(tetrahydroindenyl)zirconium dichloride,rac-dimethylsilylbis(tetrahydroindenyl)zirconium dimethyl,rac-diphenylsilylbis(4,7-dimethylindenyl)hafnium dichloride,rac-diphenylsilylbis(4,7-dimethylindenyl)hafnium dimethyl,rac-diphenylsilylbis(4,7-dimethylindenyl)zirconium dichloride,rac-diphenylsilylbis(4,7-dimethylindenyl)zirconium dimethyl,rac-diphenylsilylbis(indenyl)hafnium dichloride,rac-diphenylsilylbis(indenyl)hafnium dimethyl,rac-diphenylsilylbis(indenyl)zirconium dichloride,rac-diphenylsilylbis(indenyl)zirconium dimethyl,rac-diphenylsilylbis(tetrahydroindenyl)hafnium dichloride,rac-diphenylsilylbis(tetrahydroindenyl)hafnium dimethyl,rac-diphenylsilylbis(tetrahydroindenyl)zirconium dichloride,rac-diphenylsilylbis(tetrahydroindenyl)zirconium dimethyl,rac-methylphenylsilylbis(4,7-dimethylindenyl)hafnium dichloride,rac-methylphenylsilylbis(4,7-dimethyl,rac-methylphenylsilylbis(4,7-dimethylindenyl)zirconium dichloride,rac-methylphenylsilylbis(4,7-dimethylindenyl)zirconium dimethylrac-methylphenylsilylbis(indenyl)hafnium dichloride,rac-methylphenylsilylbis(indenyl)hafnium dimethyl,rac-methylphenylsilylbis(indenyl)zirconium dichloride,rac-methylphenylsilylbis(indenyl)zirconium dimethyl,rac-methylphenylsilylbis(tetrahydroindenyl) hafnium dichloride,rac-methylphenylsilylbis(tetrahydroindenyl)hafnium dimethyl,rac-methylphenylsilylbis(tetrahydroindenyl)zirconium dichloride,rac-methylphenylsilylbis(tetrahydroindenyl)zirconium dimethyl,rac-ethylenebis(4,7-dimethylindenyl)hafnium dichloride,rac-ethylenebis(4,7-dimethylindenyl)hafnium dimethyl,rac-ethylenebis(4,7-dimethylindenyl)zirconium dichloride,rac-ethylenebis(4,7-dimethylindenyl)zirconium dimethyl,rac-ethylenebis(indenyl) hafnium dichloride,rac-ethylenebis(indenyl)hafnium dimethyl,rac-ethylenebis(indenyl)zirconium dichloride,rac-ethylenebis(indenyl)zirconium dimethyl,rac-ethylenebis(tetrahydroindenyl)hafnium dichloride,rac-ethylenebis(tetrahydroindenyl)hafnium dimethyl,rac-ethylenebis(tetrahydroindenyl)zirconium dichloride, andrac-ethylenebis(tetrahydroindenyl)zirconium dimethyl.

[0591] 28. The process of any of the above paragraphs wherein the firstcatalyst component comprises one or more ofdimethylsilyl(tetramethylcyclopentadienyl)(cyclododecylamido)titaniumdichloride,dimethylsilyl(tetramethylcyclopentadienyl)(cyclohexyl-amido)titaniumdichloride,dimethylsilyl(tetramethylcyclopentadienyl)(1-adamantylamido)titaniumdichloride,dimethylsilyl(tetramethylcyclopentadienyl)(t-butylamido)titaniumdichloride,dimethylsilyl(tetramethylcyclopentadienyl)(s-butylamido)titaniumdichloride,dimethylsilyl(tetramethylcyclopentadienyl)(n-butylamido)titaniumdichloride,dimethylsilyl(tetramethylcyclopentadienyl)(exo-2-norbornylamido)titaniumdichloride,diethylsilyl(tetramethylcyclopentadienyl)(cyclododecyl-amido)titaniumdichloride,diethylsilyl(tetramethylcyclopentadienyl)(cyclohexyl-amido)titaniumdichloride,diethylsilyl(tetramethylcyclopentadienyl)(1-adamantylamido)titaniumdichloride,methylene(tetramethylcyclopentadienyl)(cyclododecyl-amido)titaniumdichloride,methylene(tetramethylcyclopentadienyl)(exo-2-norbornylamido)titaniumdichloride,methylene(tetramethylcyclopentadienyl)(cyclohexylamido)titaniumdichloride,methylene(tetramethylcyclopentadienyl)(1-adamantylamido)titaniumdichloride,dimethylsilyl(tetramethylcyclopentadienyl)(cyclododecylamido)titaniumdimethyl,dimethylsilyl(tetramethylcyclopentadienyl)(exo-2-norbornylamido)titaniumdimethyl,dimethylsilyl(tetramethylcyclopentadienyl)(cyclohexyl-amido)titaniumdimethyl,dimethylsilyl(tetramethylcyclopentadienyl)(1-adamantylamido)titaniumdimethyl,dimethylsilyl(2,5-dimethylcyclopentadienyl)(cyclododecylamido)titaniumdichloride,dimethylsilyl(2,5-dimethylcyclopentadienyl)(exo-2-norbornylamido)titaniumdichloride,dimethylsilyl(2,5-dimethylcyclopentadienyl)(cyclohexylamido)titaniumdichloride,dimethylsilyl(2,5-dimethylcyclopentadienyl)(1-adamantylamido)titaniumdichloride,dimethylsilyl(3,4-dimethylcyclopentadienyl)(cyclododecylamido)titaniumdichloride,dimethylsilyl(3,4-dimethylcyclopentadienyl)(exo-2-norbornylamido)titaniumdichloride,dimethylsilyl(3,4-dimethylcyclopentadienyl)(cyclohexylamido)titaniumdichloride,dimethylsilyl(2-ethyl-5-methylcyclopentadienyl)(cyclododecylamido)titaniumdichloride,dimethylsilyl(2-ethyl-5-methylcyclopentadienyl)(exo-2-norbornylamido)titaniumdichloride,dimethylsilyl(2-ethyl-5-methylcyclopentadienyl)(cyclohexylamido)titaniumdichloride,dimethylsilyl(2-ethyl-5-methylcyclopentadienyl)(1-adamantylamido)titaniumdichloride,dimethylsilyl(3-ethyl-4methylcyclopentadienyl)(cyclododecylamido)titaniumdichloride,dimethylsilyl(3-ethyl-4-methylcyclopentadienyl)(exo-2-norbornylamido)titaniumdichloride,dimethylsilyl(3-ethyl-4-methylcyclopentadienyl)(cyclohexylamido)titaniumdichloride,dimethylsilyl(3-ethyl-4-methylcyclopentadienyl)(2-adamantylamido)titaniumdichloride,dimethylsilyl(2-ethyl-3-hexyl-5-methyl-4-octylcyclopentadienyl)(cyclododecylamido)titaniumdichloride,dimethylsilyl(2-ethyl-3-hexyl-5-methyl-4-octylcyclopentadienyl)(exo-2-norbornylamido)titaniumdichloride,dimethylsilyl(2-ethyl-3-hexyl-5-methyl-4-octylcyclopentadienyl)(cyclohexylamido)titaniumdichloride,dimethylsilyl(2-tetrahydroindenyl)(cyclododecylamido)titaniumdichloride, dimethylsilyl(2-tetrahydroindenyl)(cyclohexylamido)titaniumdichloride, dimethylsilyl(2-tetrahydroindenyl)(1-adamantylamido)titaniumdichloride,dimethylsilyl(2-tetrahydroindenyl)(exo-2-norbornylamido)titaniumdichloride,dimethylsilyl(tetramethylcyclopentadienyl)(cyclododecylamido)titaniumdimethyl,dimethylsilyl(tetramethylcyclopentadienyl)(cyclohexyl-amido)titaniumdimethyl,dimethylsilyl(tetramethylcyclopentadienyl)(1-adamantylamido)titaniumdimethyl,dimethylsilyl(tetramethylcyclopentadienyl)(t-butylamido)titaniumdimethyl,dimethylsilyl(tetramethylcyclopentadienyl)(s-butylamido)titaniumdimethyl,dimethylsilyl(tetramethylcyclopentadienyl)(n-butylamido)titaniumdimethyl,dimethylsilyl(tetramethylcyclopentadienyl)(exo-2-norbomylamido)titaniumdimethyl,diethylsilyl(tetramethylcyclopentadienyl)(cyclododecyl-amido)titaniumdimethyl,diethylsilyl(tetramethylcyclopentadienyl)(exo-2-norbornylamido)titaniumdimethyl,diethylsilyl(tetramethylcyclopentadienyl)(cyclohexyl-amido)titaniumdimethyl,diethylsilyl(tetramethylcyclopentadienyl)(1-adamantylamido)titaniumdimethyl,methylene(tetramethylcyclopentadienyl)(cyclododecyl-amido)titaniumdimethyl,methylene(tetramethylcyclopentadienyl)(exo-2-norbornylamido)titaniumdimethyl,methylene(tetramethylcyclopentadienyl)(cyclohexylamido)titaniumdimethyl,methylene(tetramethylcyclopentadienyl)(1-adamantylamido)titaniumdimethyl,dimethylsilyl(tetramethylcyclopentadienyl)(cyclododecylamido)titaniumdimethyl,dimethylsilyl(tetramethylcyclopentadienyl)(exo-2-norbornylamido)titaniumdimethyl,dimethylsilyl(tetramethylcyclopentadienyl)(cyclohexyl-amido)titaniumdimethyl,dimethylsilyl(tetramethylcyclopentadienyl)(1-adamantylamido)titaniumdimethyl,dimethylsilyl(2,5-dimethylcyclopentadienyl)(cyclododecylamido)titaniumdimethyl,dimethylsilyl(2,5-dimethylcyclopentadienyl)(exo-2-norbornylamido)titaniumdimethyl,dimethylsilyl(2,5-dimethylcyclopentadienyl)(cyclohexylamido)titaniumdimethyl,dimethylsilyl(2,5-dimethylcyclopentadienyl)(1-adamantylamido)titaniumdimethyl,dimethylsilyl(3,4-dimethylcyclopentadienyl)(cyclododecylamido)titaniumdimethyl,dimethylsilyl(3,4-dimethylcyclopentadienyl)(exo-2norbornylamido)titaniumdimethyl,dimethysilyl(3,4-dimethylcyclopentadienyl)(cyclohexylamido)titaniumdimethyl,dimethylsilyl(3,4-dimethylcyclopentadienyl)(1-adamantylamido)titaniumdimethyl,dimethylsilyl(2-ethyl-5-methylcyclopentadienyl)(cyclododecylamido)titaniumdimethyl,dimethylsilyl(2-ethyl-5-methylcyclopentadienyl)(exo-2-norbornylamido)titaniumdimethyl,dimethylsilyl(2-ethyl-5-methylcyclopentadienyl)(cyclohexylamido)titanium dimethyl,dimethylsilyl(2-ethyl-5-methylcyclopentadienyl)(1-adamantylamido)titaniumdimethyl,dimethylsilyl(3-ethyl-4-methylcyclopentadienyl)(cyclododecylamido)titaniumdimethyl,dimethysilyl(3-ethyl-4-methylcyclopentadienyl)(exo-2-norbornylamido)titaniumdimethyl,dimethylsilyl(3-ethyl-4-methylcyclopentadienyl)(cyclohexylamido)titaniumdimethyl,dimethylsilyl(3-ethyl-4-methylcyclopentadienyl)(1-adamantylamido)titaniumdimethyl,dimethylsilyl(2-ethyl-3-hexyl-5-methyl-4-octylcyclopentadienyl)(cyclododecylamido)titaniumdimethyl,dimethysilyl(2-ethyl-3-hexyl-5-methyl-4-octylcyclopentadienyl)(exo-2-norbornylamido)titaniumdimethyl,dimethylsilyl(2-ethyl-3-hexyl-5-methyl-4-octylcyclopentadienyl)(cyclohexylamido)titaniumdimethyl,dimethylsilyl(2-ethyl-3-hexyl-5-methyl-4-octylcyclopentadienyl)(1-adamantylamido)titaniumdimethyl, dimethylsilyl(2-tetrahydroindenyl)(cyclododecylamido)titaniumdimethyl, dimethylsilyl(2-tetrahydroindenyl)(cyclohexylamido)titaniumdimethyl, dimethylsilyl(2-tetrahydroindenyl)(1-adamantylamido)titaniumdimethyl, anddimethylsilyl(2-tetrahydroindenyl)(exo-2-norbornylamido)titaniumdimethyl.

[0592] 29. The process of any of the above paragraphs wherein the secondcatalyst component comprises one or more of the racemic versions of:dimethylsilyl(2-methyl-4-phenylindenyl)zirconium dichloridedimethylsilyl(2-methyl-4-phenylindenyl)zirconium dimethyl,dimethylsilyl(2-methyl-4-phenylindenyl)hafnium dichloride,dimethylsilyl(2-methyl-4-phenylindenyl)hafnium dimethyl, dimethylsilylbis(indenyl)hafnium dimethyl, dimethylsilyl bis(indenyl)hafniumdichloride, dimethylsilyl bis(indenyl)zirconium dimethyl, dimethylsilylbis(indenyl)zirconium dichloride,

[0593] the racemic isomers of:

[0594] dimethylsilanediylbis(2-methyl)metal dichloride;dimethylsilanediylbis(indenyl)metal dichloride;dimethylsilanediylbis(indenyl)metal dimethyl;dimethylsilanediylbis(tetrahydroindenyl)metal dichloride;dimethylsilanediylbis(tetrahydroindenyl)metal dimethyl;dimethylsilanediylbis(indenyl)metal diethyl; anddibenzylsilanediylbis(indenyl)metal dimethyl;

[0595] wherein the metal can be chosen from Zr, Hf, or Ti.

[0596] 30. The process of any of the above paragraphs wherein the firstcatalyst component comprises1,1′-bis(4-triethylsilylphenyl)methylene-(cyclopentadienyl)(2,7-di-tertiary-butyl-9-fluorenyl)hafniumdimethyl and or1,1′-bis(4-triethylsilylphenyl)methylene-(cyclopentadienyl)(3,8-di-tertiary-butyl-fluorenyl)hafniumdimethyl.

[0597] 31. The process of any of the above paragraphs wherein the secondcatalyst component comprises dimethylsilylbis(2-methyl-5-phenylindenyl)zirconium dicmethyl and or dimethysilylbis(2-methyl-4-phenylindenyl)zirconium dicmethyl.

[0598] 32. The process of any of the above paragraphs wherein theactivator comprises dimethylaniliniumtetrakis(pentafluorophenyl) borateand or trityl tetrakis(pentafluorophenyl)borate.

[0599] 33. The process of any of the above paragraphs wherein theactivator comprises an alumoxane.

[0600] 34. The process of any of the above paragraphs wherein theactivator comprises an ionizing compound.

[0601] 35. The process of claim 35 wherein the activator comprises anon-coordinating anion.

[0602] 36. The process of any of the above paragraphs wherein theactivator comprises one or more of methylalumoxane, trimethylammoniumtetraphenylborate, triethylammonium tetraphenylborate, tripropylammoniumtetraphenylborate, tri(n-butyl)ammonium tetraphenylborate,tri(t-butyl)ammonium tetraphenylborate, N,N-dimethylaniliniumtetraphenylborate, N,N-diethylanilinium tetraphenylborate,N,N-dimethyl-(2,4,6-trimethylanilinium)tetraphenylborate,trimethylammonium tetrakis(pentafluorophenyl)borate, triethylammoniumtetrakis(pentafluorophenyl)borate, tripropylammoniumtetrakis(pentafluorophenyl)borate, tri(n-butyl)ammoniumtetrakis(pentafluorophenyl)borate, tri(sec-butyl)ammoniumtetrakis(pentafluorophenyl)borate N,N-dimethylaniliniumtetrakis(pentafluorophenyl)borate, N,N-diethylaniliniumtetrakis(pentafluorophenyl)borate,N,N-dimethyl-(2,4,6-trimethylanilinium)tetrakis(pentafluorophenyl)borate,trimethylammonium tetrakis-(2,3,4,6-tetrafluorophenylborate,triethylammonium tetrakis-(2 3,4,6-tetrafluorophenyl)borate,tripropylammonium tetrakis-(2,3,4,6-tetrafluorophenyl)borate,tri(n-butyl)ammonium tetrakis-(2,3,4,6-tetrafluoro-phenyl)borate,dimethyl(t-butyl)ammonium tetrakis-(2,3,4,6-tetrafluorophenyl)borate,N,N-dimethylanilinium tetrakis-(2,3,4,6-tetrafluorophenyl)borate,N,N-diethylanilinium tetrakis-(2,3,4,6-tetrafluorophenyl)borate, andN,N-dimethyl-(2,4,6-trimethylanilinium)tetrakis-(2,3,4,6-tetrafluorophenyl)borate; di-(i-propyl)ammonium tetrakis(pentafluorophenyl)borate;dicyclohexylammonium tetrakis(pentafluorophenyl)borate;tiphenylphosphonium tetrakis(pentafluorophenyl)borate,tri(o-tolyl)phosphonium tetrakis(pentafluorophenyl)borate; andtri(2,6-dimethylphenyl)phosphonium tetrakis(pentafluorophenyl)borate.

[0603] 37. The process of any of the above paragraphs wherein the firstcatalyst component is capable of polymerizing macromonomers havingreactive termini; and the second component is capable of producingmacromonomers having reactive termini.

[0604] 38. The process of any of the above paragraphs wherein one ormore reaction zones further comprise diolefin.

[0605] 39. The process of any of the above paragraph wherein one or morereaction zones further comprise one or more C4 to C40 dienes.

[0606] 40. The process of any of the above paragraphs wherein one ormore reaction zones further comprise one or more dienes selected fromthe group consisting of 1,6-heptadiene, 1,7-octadiene, 1,8-nonadiene,1,9-decadiene, 1,10-undecadiene, 1,11-dodecadiene, 1,12-tridecadiene,1,13-tetradecadiene, cyclopentadiene, vinylnorbornene, norbornadiene,ethylidene norbornene, divinylbenzene, dicyclopentadiene, polybutadieneshaving an Mw less than 1000 g/mol, or combinations thereof.

[0607] 41. The process of any of the above paragraphs wherein at leastone reaction zone is a gas phase reactor.

[0608] 42. The process of any of the above paragraphs wherein at leastone reaction zone is a solution phase reactor.

[0609] 43. The process of any of the above paragraphs wherein at leastone reaction zone is a slurry phase reactor.

[0610] 44. The process of any of the above paragraphs wherein all of thereaction zones are a solution phase reactor.

[0611] 45. The process of any of the above paragraphs wherein the firstcatalyst component, the second catalyst component and the activatorcomprise one or more of the following combinations (where Me equalsmethyl, Ph equals phenyl, Et equals ethyl, Cp equals cyclopentadienyl,3,6-di-t-BuFlu equals 3,8-di-tert-butylfluorenyl, 2-Me-4-PhInd equals2-methyl-4-phenylindenyl, 2-MeInd means 2-methylindenyl, c-C₁₂H₂₃ equalscyclododecyl, Me₄C₅-tetramethylcyclopentadienyl, H₄Ind equalstetrahydroindenyl, H₄Ind equals indenyl):

[0612] (1) Me₂Si(Me₄C₅)(N-c-C₁₂H₂₃)TiCl₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrCl₂ activated with an alumoxane;

[0613] (2) Me₂Si(Me₄C₅)(N-c-C₁₂H₂₃)TiMe₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with a non-coordinating anionactivator,

[0614] (2a) Me₂Si(Me₄C₅)(N-c-C₁₂H₂₃)TiMe₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with N,N-dimethylaniliniumtetrakis(pentaflourophenyl)boron and or triphenylcarboniumtetrakis(pentaflourophenyl)boron;

[0615] (3) Me₂Si(Me₄C₅)(N-c-C₁₂H₂₃)TiCl₂ and rac-Me₂Si(2-MeInd)₂ZrCl₂activated with an alumoxane;

[0616] (4) Me₂Si(Me₄C₅)(N-c-C₁₂H₂₃)TiMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂activated with a non-coordinating anion activator;

[0617] (4a) Me₂Si(Me₄C₅(N-c-C₁₂H₂₃)TiMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boronand or triphenylcarbonium tetrakis(pentaflourophenyl)boron;

[0618] (5) Me₂Si(Me₄C₅)(N-1-adamantyl)TiCl₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrCl₂ activated with an alumoxane,

[0619] (6) Me₂Si(Me₄C₅)(N-1-adamantyl)TiMe₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with a non-coordinating anionactivator;

[0620] (6a) Me₂Si(Me₄C₅)(N-1-adamantyl)TiMe₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with N,N-dimethylaniliniumtetrakis(pentaflourophenyl)boron and or triphenylcarboniumtetrakis(pentaflourophenyl)boron;

[0621] (7) Me₂Si(Me₄C₅)(N-1-adamantyl)TiCl₂ and rac-Me₂Si(2-MeInd)₂ZrCl₂activated with an alumoxane,

[0622] (8) Me₂Si(Me₄C₅)(N-1-adamantyl)TiMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂activated with a non-coordinating anion activator;

[0623] (8a) Me₂Si(Me₄C₅)(N-1-adamantyl)TiMe₂ andrac-Me₂Si(2-MeInd)₂ZrMe₂ activated with N,N-dimethylaniliniumtetrakis(pentaflourophenyl)boron and or triphenylcarboniumtetrakis(pentaflourophenyl)boron;

[0624] (9) Me₂Si(Me₄C₅)(N-t-butyl)TiCl₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrCl₂ activated with an alumoxane;

[0625] (10) Me₂Si(Me₄C₅)(N-t-butyl)TiMe₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with a non-coordinating anionactivator;

[0626] (10a) Me₂Si(Me₄C₅)(N-t-butyl)TiMe₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with N,N-dimethylaniliniumtetrakis(pentaflourophenyl)boron and or triphenylcarboniumtetrakis(pentaflourophenyl)boron;

[0627] (11) Me₂Si(Me₄C₅)(N-t-butyl)TiCl₂ and rac-Me₂Si(2-MeInd)activated with an alumoxane;

[0628] (12) Me₂Si(Me₄C₅)(N-t-butyl)TiMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂activated with a non-coordinating anion activator;

[0629] (12a) Me₂Si(Me₄C₅)(N-t-butyl)TiMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boronand or triphenylcarbonium tetrakis(pentaflourophenyl)boron;

[0630] (13) Me₂Si(Me₄C₅)(N-exo-norbornyl)TiCl₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrCl₂ activated with an alumoxane;

[0631] (14) Me₂Si(Me₄C₅)(N-exo-norbornyl)TiMe₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with a non-coordinating anionactivator;

[0632] (14a) Me₂Si(Me₄C₅)(N-exo-norbornyl)TiMe₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with N,N-dimethylaniliniumtetrakis(pentaflourophenyl)boron and or triphenylcarboniumtetrakis(pentaflourophenyl)boron;

[0633] (15) Me₂Si(Me₄C₅)(N-exo-norbornyl)TiCl₂ andrac-Me₂Si(2-MeInd)₂ZrCl₂ activated with an alumoxane;

[0634] (16) Me₂Si(Me₄C₅)(N-exo-norbornyl)TiMe₂ andrac-Me₂Si(2-MeInd)₂ZrMe₂ activated with a non-coordinating anionactivator;

[0635] (16a) Me₂Si(Me₄C₅)(N-exo-norbornyl)TiMe₂ andrac-Me₂Si(2-MeInd)₂ZrMe₂ activated with N,N-dimethylaniliniumtetrakis(pentaflourophenyl)boron and or triphenylcarboniumtetrakis(pentaflourophenyl)boron;

[0636] (17) (p-Et₃SiPh)₂C(Cp)(3,8-di-t-BuFlu)HfCl₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrCl₂ activated with an alumoxane;

[0637] (18) (p-Et₃SiPh)₂C(Cp)(3,8-di-t-BuFlu)HfMe₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with a non-coordinating anionactivator;

[0638] (18a) (p-Et3SiPh)₂C(Cp)(3,8-di-t-BuFlu)HfMe₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with N,N-dimethylaniliniumtetrakis(pentaflourophenyl)boron and or triphenylcarboniumtetrakis(pentaflourophenyl)boron;

[0639] (19) (p-Et₃SiPh)₂C(Cp)(3,8-di-t-BuFlu)HfCl₂ andrac-Me₂Si(2-MeInd)₂ZrCl₂ activated with an alumoxane;

[0640] (20) (p-Et₃SiPh)₂C(Cp)(3,8-di-t-BuFlu)HfMe₂ andrac-Me₂Si(2-MeInd)₂ZrMe₂ activated with a non-coordinating anionactivator;

[0641] (20a) (p-Et₃SiPh)₂C(Cp)(3,8-di-t-BuFlu)HfMe₂ andrac-Me₂Si(2-MeInd)₂ZrMe₂ activated with N,N-dimethylaniliniumtetrakis(pentaflourophenyl)boron and or triphenylcarboniumtetrakis(pentaflourophenyl)boron;

[0642] (21) meso-CH₂CH₂(Ind)₂ZrCl₂ and rac-Me₂Si(H₄Ind)₂ZrCl₂ activatedwith an alumoxane;

[0643] (22) meso-CH₂CH₂(Ind)₂ZrMe₂ and rac-Me₂Si(H₄Ind)₂ZrMe₂ activatedwith a non-coordinating anion activator;

[0644] (22a) meso-CH₂CH₂(Ind)₂ZrMe₂ and rac-Me₂Si(H₄Ind)₂ZrMe₂ activatedwith N,N-dimethylanilinium tetrakis(pentaflourophenyl)boron and ortriphenylcarbonium tetrakis(pentaflourophenyl)boron;

[0645] (23) meso-CH₂CH₂(Ind)₂ZrCl₂ and rac-Me₂Si(2-MeInd)₂ZrCl₂activated with an alumoxane;

[0646] (24) meso-CH₂CH₂(Ind)₂ZrMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂activated with a non-coordinating anion activator;

[0647] (24a) meso-CH₂CH₂(Ind)₂ZrMe₂ and rac-Me2Si(2-MeInd)₂ZrMe₂activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boronand or triphenylcarbonium tetrakis(pentaflourophenyl)boron;

[0648] (25) meso-Me₂Si(Ind)₂ZrCl₂ and rac-Me₂Si(H₄Ind)₂ZrCl₂ activatedwith an alumoxane;

[0649] (26) meso-Me₂Si(Ind)₂ZrMe₂ and rac-Me₂Si(H₄Ind)₂ZrMe₂ activatedwith a non-coordinating anion activator;

[0650] (26a) meso-Me₂Si(Ind)₂ZrMe₂ and rac-Me₂Si(H₄Ind)₂ZrMe₂ activatedwith N,N-dimethylanilinium tetrakis(pentaflourophenyl)boron and ortriphenylcarbonium tetrakis(pentaflourophenyl)boron;

[0651] (27) meso-Me₂Si(Ind)₂ZrCl₂ and rac-Me₂Si(2-MeInd)₂ZrCl₂ activatedwith an alumoxane;

[0652] (28) meso-Me₂Si(Ind)₂ZrMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂ activatedwith a non-coordinating anion activator;

[0653] (28a) meso-Me₂Si(Ind)₂ZrMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boronand or triphenylcarbonium tetrakis(pentaflourophenyl)boron;

[0654] (29) meso-Me₂Si(2-MeInd)₂ZrCl₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrCl₂activated with an alumoxane,

[0655] (30) meso-Me₂Si(2-MeInd)₂ZrMe₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂activated with a non-coordinating anion activator,

[0656] (30a) meso-Me₂Si(2-MeInd)₂ZrMe₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂activated with N,N-dimethylaniliniumtetrakis(pentaflourophenyl)boron and or triphenylcarboniumtetrakis(pentaflourophenyl)boron;

[0657] (31) meso-Me₂Si(2-MeInd)₂ZrCl₂ and rac-Me₂Si(2-MeInd)₂ZrCl₂activated with an alumoxane;

[0658] (32) meso-Me₂Si(2-MeInd)₂ZrMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂activated with a non-coordinating anion activator;

[0659] (32a) meso-Me₂Si(2-MeInd)₂ZrMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boronand or triphenylcarbonium tetrakis(pentaflourophenyl)boron;

[0660] (33) meso-CH₂CH₂(2-MeInd)₂ZrCl₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrCl₂activated with an alumoxane;

[0661] (34) meso-CH₂CH₂(2-MeInd)₂ZrMe₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂activated with a non-coordinating anion activator;

[0662] (34a) meso-CH₂CH₂(2-MeInd)₂ZrMe₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with N,N-dimethylaniliniumtetrakis(pentaflourophenyl)boron and or phenylcarboniumtetrakis(pentaflourophenyl)boron;

[0663] (35) meso-CH₂CH₂(2-MeInd)₂ZrCl₂ and rac-Me₂Si(2-MeInd)₂ZrCl₂activated with an alumoxane;

[0664] (36) meso-CH₂CH₂(2-MeInd)₂ZrMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂activated with a non-coordinating anion activator;

[0665] (36a) meso-CH₂CH₂(2-MeInd)₂ZrMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boronand or triphenylcarbonium tetrakis(pentaflourophenyl)boron;

[0666] (37) meso-Me₂Si(2-Me-4-PhInd)₂ZrCl₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrCl₂ activated with an alumoxane;

[0667] (38) meso-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with a non-coordinating anionactivator;

[0668] (38a) meso-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ andrac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with N,N-dimethylaniliniumtetrakis(pentaflourophenyl)boron and or triphenylcarboniumtetrakis(pentaflourophenyl)boron;

[0669] (39) meso-CH₂CH₂(2-Me-4-PhInd)₂ZrCl₂ andrac-CH₂CH₄(2-Me-4-PhInd)₂ZrCl₂ activated with an alumoxane;

[0670] (40) meso-CH₂CH₂(2-Me-4-PhInd)₂ZrMe₂ andrac-CH₂CH₂(2-Me-4-PhInd)₂ZrMe₂ activated with a non-coordinating anionactivator;

[0671] (40a) meso-CH₂CH₂(2-Me-4-PhInd)₂ZrMe₂ andrac-CH₂CH₂(2-Me-4-PhInd)₂ZrMe₂ activated with N,N-dimethylaniliniumtetrakis(pentaflourophenyl)boron and or triphenylcarboniumtetrakis(pentaflourophenyl)boron;

[0672] (41) meso-CH₂CH₂(2-MeInd)₂ZrCl₂ and rac-CH₂CH₂(2-MePhInd)₂ZrCl₂activated with an alumoxane;

[0673] (42) meso-CH₂CH₂(2-MeInd)₂ZrMe₂ and rac-CH₂CH₂(2-MeInd)₂ZrMe₂activated with a non-coordinating anion activator;

[0674] (42 a) meso-CH₂CH₂(2-MeInd)₂ZrMe₂ and rac-CH₂CH(2 -MeInd)₂ZrMe₂activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boronand or triphenylcarbonium tetrakis(pentaflourophenyl)boron;

[0675] (43) meso-CH₂CH₂(Ind)₂ZrCl₂ and rac-CH₂CH₂(Ind)₂ZrCl₂ activatedwith an alumoxane;

[0676] (44) meso-CH₂CH₂(Ind)₂ZrMe₂ and rac-CH₂CH₂(Ind)₂ZrMe₂ activatedwith a non-coordinating anion activator;

[0677] (44a) meso-CH₂CH₂(Ind)₂ZrMe₂ and rac-CH₂CH₂(Ind)₂ZrMe₂ activatedwith N,N-dimethylanilinium tetrakis(pentaflourophenyl)boron and ortriphenylcarbonium tetrakis(pentaflourophenyl)boron,

[0678] (45) meso-Me₂Si(Ind)₂ZrCl₂ and rac-Me₂Si(Ind)₂ZrCl₂ activatedwith an alumoxane;

[0679] (46) meso-Me₂Si(Ind)₂ZrMe₂ and rac-Me₂Si(Ind)₂ZrMe₂ activatedwith a non-coordinating anion activator;

[0680] (46a) meso-Me₂Si(Ind)₂ZrMe₂ and rac-Me₂Si(Ind)₂ZrMe₂ activatedwith N,N-dimethylanilinium tetrakis(pentaflourophenyl)boron and ortriphenylcarbonium tetrakis(pentaflourophenyl)boron;

[0681] (47) meso-CH₂CH₂(Ind)₂ZrCl₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrCl₂(4,7Me₂Ind=4,7-dimethylindenyl) activated with an alumoxane;

[0682] (48) meso-CH₂CH₂(Ind)₂ZrMe₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrMe₂activated with a non-coordinating anion activator;

[0683] (48a) meso-CH₂CH₂(Ind)₂ZrMe₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrMe₂activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boronand or triphenylcarbonium tetrakis(pentaflourophenyl)boron;

[0684] (49) meso-Me₂Si(Ind)₂ZrCl₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrCl₂activated with an alumoxane;

[0685] (50) meso-Me₂Si(Ind)₂ZrMe₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrMe₂activated with a non-coordinating anion activator;

[0686] (50a) meso-Me₂Si(Ind)₂ZrMe₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrMe₂activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boronand or triphenylcarbonium tetrakis(pentaflourophenyl)boron;

[0687] (51) meso-CH₂CH₂(2-MeInd)₂ZrCl₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrCl₂(4,7-Me₂Ind=4,7-dimethylindenyl) activated with an alumoxane;

[0688] (52) meso-CH₂CH₂(2-MeInd)₂ZrMe₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrMe₂activated with a non-coordinating anion activator;

[0689] (52a) meso-CH₂CH₂(2-MeInd)₂ZrMe₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrMe₂activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boronand or triphenylcarbonium tetrakis(pentaflourophenyl)boron;

[0690] (53) meso-Me₂Si(2-MeInd)₂ZrCl₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrCl₂activated with an alumoxane;

[0691] (54) meso-Me₂Si(2-MeInd)₂ZrMe₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrMe₂activated with a non-coordinating anion activator; or

[0692] (54a) meso-Me₂Si(2-MeInd)₂ZrMe₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrMe₂activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boronand or triphenylcarbonium tetrakis(pentaflourophenyl)boron.

[0693] 46. The process of any of the above paragraphs wherein:

[0694] 1) the first catalyst component is capable of producing a polymerhaving an Mw of 80,000 or less and a crystallinity of 15% or less underselected polymerization conditions;

[0695] 2) the a second catalyst component is capable of producingpolymer having an Mw of 80,000 or less and a crystallinity of 50% ormore at the selected polymerization conditions,

[0696] 3) the temperature in the reaction zones is greater than 105° C.

[0697] 4) the residence time in the reaction zones is 10 minutes orless;

[0698] 5) the ratio of the first catalyst to the second catalyst is from1:1 to 20:1;

[0699] 6) wherein the activity of the catalyst components is at least100 kilograms of polymer per gram of the catalyst compounds; and whereinat least 80% of the olefins are converted to polymer.

[0700] 47. The process of claim 46 wherein:

[0701] a) the olefins comprise propylene and one or more of butene,pentene, hexene,

[0702] heptene, octene; nonene, decene, dodecene; and

[0703] b) the temperature is greater than 110° C.; and

[0704] c) the residence time is 5 minutes or less; and

[0705] d) the ratio of the first catalyst to the second catalyst is from1:1 to 1:10.

[0706] 48. The process of any of the above paragraphs wherein the stepof recovering a branched olefin polymer comprising at least 50 mole % ofone or more C3 to C40 olefins comprises:

[0707] 1) withdrawing polymer solution from the reaction zone;

[0708] 2) removing at least 10% solvent from the polymer solution;

[0709] 3) quenching the reaction;

[0710] 4) devolatilizing the polymer solution to form molten polymer;

[0711] 5) combining the molten polymer and one or more additives in astatic mixer;

[0712] 6) removing the polymer combination from the static mixer; and

[0713] 7) pelletizing or drumming the polymer combination.

[0714] 49. The process of claim 48 wherein the additives in step 5)comprise nucleating agent.

[0715] 50. The process of any of the above paragraphs wherein the secondcatalyst component comprises one or more of:

[0716] dimethylsiladiyl(2-methyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[0717] dimethylsiladiyl(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[0718] dimethylsiladiyl(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[0719] dimethylsiladiyl(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[0720] dimethylsiladiyl(2-n-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[0721] dimethylsiladiyl(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[0722] dimethylsiladiyl(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[0723] dimethylsiladiyl(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[0724] dimethylsiladiyl(2-methyl4-[3′,5′di-tbutylphenyl]indenyl)₂hafnium dichloride;

[0725] dimethylsiladiyl(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dichloride;

[0726] dimethylsiladiyl(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethylsiladiyl(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dichloride;

[0727] dimethylsiladiyl(2-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dichloride;

[0728] 9-silafluorendiyl(2-methyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[0729] 9-silafluorendiyl(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[0730] 9-silafluorendiyl(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[0731] 9-silafluorendiyl(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[0732] 9-silafluorendiyl(2-n-butyl,4-[3′,5′di-tbutylphenyl]indenyl)₂zirconium dichloride;

[0733] 9-silafluorendiyl(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[0734] 9-silafluorendiyl(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[0735] 9-silafluorendiyl(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[0736] 9-silafluorendiyl(2-methyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dichloride;

[0737] 9-silafluorendiyl(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dichloride;

[0738] 9-silafluorendiyl(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dichloride;

[0739] 9-silafluorendiyl(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dichloride;

[0740] 9-silafluorendiyl(2-n-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dichloride;

[0741] 9-silafluorendiyl(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dichloride;

[0742] 9-silafluorendiyl(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dichloride;

[0743] 9-silafluorendiyl(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dichloride;

[0744] dimethylsiladiyl(2-methyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[0745] dimethylsiladiyl(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[0746] dimethylsiladiyl(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[0747] dimethylsiladiyl(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[0748] dimethylsiladiyl(2-n-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[0749] dimethylsiladiyl(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[0750] dimethylsiladiyl(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)2zirconium dimethyl;

[0751] dimethylsiladiyl(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[0752] dimethylsiladiyl(2-methyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl;

[0753] dimethylsiladiyl(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl;

[0754] dimethylsiladiyl(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyldimethylsiladiyl(2-iso-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafniumdimethyl;

[0755] dimethylsiladiyl(2-n-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl;

[0756] dimethylsiladiyl(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl;

[0757] dimethylsiladiyl(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl;

[0758] dimethylsiladiyl(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl;

[0759] 9-silafluorendiyl(2-methyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[0760] 9-silafluorendiyl-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[0761] 9-silafluorendiyl(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[0762] 9-silafluorendiyl(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[0763] 9-silafluorendiyl(2-n-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[0764] 9-silafluorendiyl(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[0765] 9-silafluorendiyl(2-sec-butyl4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[0766] 9-silafluorendiyl(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[0767] 9-silafluorendiyl(2-methyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl;

[0768] 9-silafluorendiyl(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl;

[0769] 9-silafluorendiyl(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl;

[0770] 9-silafluorendiyl(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl;

[0771] 9-silafluorendiyl(2-n-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl;

[0772] 9-silafluorendiyl(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl;

[0773] 9-silafluorendiyl(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl;

[0774] 9-silafluorendiyl(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl;

[0775] dimethylsiladiyl(2-methyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[0776] dimethylsiladiyl(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[0777] dimethylsiladiyl(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[0778] dimethylsiladiyl(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[0779] dimethylsiladiyl(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[0780] dimethylsiladiyl(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[0781] dimethylsiladiyl(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[0782] dimethylsiladiyl(2-tert-butyl,4-[3′,5′-bis-trifluormethylphenyl]indenyl)₂zirconium dichloride,;

[0783] dimethylsiladiyl(2-methyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;

[0784] dimethylsiladiyl(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;

[0785] dimethylsiladiyl(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;

[0786] dimethylsiladiyl(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;

[0787] dimethylsiladiyl(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;

[0788] dimethylsiladiyl(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;

[0789] dimethylsiladiyl(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;

[0790] dimethylsiladiyl(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;

[0791] 9-silafluorendiyl(2-methyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[0792] dimethylsiladiyl(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;

[0793] 9-silafluorendiyl(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[0794] 9-silafluorendiyl(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[0795] 9-silafluorendiyl(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[0796] 9-silafluorendiyl(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[0797] 9-silafluorendiyl(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[0798] 9-silafluorendiyl(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[0799] 9-silafluorendiyl(2-methyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;

[0800] 9-silafluorendiyl(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;

[0801] 9-silafluorendiyl(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;

[0802] 9-silafluorendiyl(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;

[0803] 9-silafluorendiyl(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;

[0804] 9-silafluorendiyl(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;

[0805] 9-silafluorendiyl(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;

[0806] 9-silafluorendiyl(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride;

[0807] dimethylsiladiyl(2-methyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[0808] dimethylsiladiyl(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[0809] dimethylsiladiyl(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[0810] dimethylsiladiyl(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[0811] dimethylsiladiyl(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[0812] dimethylsiladiyl(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[0813] dimethylsiladiyl(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[0814] dimethylsiladiyl(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[0815] dimethylsiladiyl(2-methyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;

[0816] dimethylsiladiyl(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;

[0817] dimethylsiladiyl(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;

[0818] dimethylsiladiyl(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;

[0819] dimethylsiladiyl(2-n-butyl,4-[3′,5′-bis-trifluormethylphenyl]indenyl)₂hafnium dimethyl;

[0820] dimethylsiladiyl(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;

[0821] dimethylsiladiyl(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;

[0822] dimethylsiladiyl(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;

[0823] 9-silafluorendiyl(2-methyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[0824] dimethylsiladiyl(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;

[0825] 9-silafluorendiyl(2-n-propyl,[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[0826] 9-silafluorendiyl(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[0827] 9-silafluorendiyl(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[0828] 9-silafluorendiyl(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[0829] 9-silafluorendiyl(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[0830] 9-silafluorendiyl(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[0831] 9-silafluorendiyl(2-methyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;

[0832] 9-silafluorendiyl(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;

[0833] 9-silafluorendiyl(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;

[0834] 9-silafluorendiyl(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;

[0835] 9-silafluorendiyl(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;

[0836] 9-silafluorendiyl(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;

[0837] 9-silafluorendiyl(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;

[0838] 9-silafluorendiyl(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl;

[0839] dimethylsiladiyl(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[0840] dimethylsiladiyl(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride

[0841] dimethylsiladiyl(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[0842] dimethylsiladiyl(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[0843] dimethylsiladiyl(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[0844] dimethylsiladiyl(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[0845] dimethylsiladiyl(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[0846] dimethylsiladiyl(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride;

[0847] dimethylsiladiyl(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride;

[0848] dimethylsiladiyl(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride;

[0849] dimethylsiladiyl(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride;

[0850] dimethylsiladiyl(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride,

[0851] dimethylsiladiyl(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride;

[0852] dimethylsiladiyl(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride;

[0853] 9-silafluorendiyl(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[0854] 9-silafluorendiyl(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[0855] 9-silafluorendiyl(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[0856] 9-silafluorendiyl(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[0857] 9-silafluorendiyl(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[0858] 9-silafluorendiyl(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[0859] 9-silafluorendiyl(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[0860] 9-silafluorendiyl(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride;

[0861] 9-silafluorendiyl(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride;

[0862] 9-silafluorendiyl(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride;

[0863] 9-silafluorendiyl(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride;

[0864] 9-silafluorendiyl(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride;

[0865] 9-silafluorendiyl(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride;

[0866] 9-silafluorendiyl(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride;

[0867] dimethylsiladiyl(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[0868] dimethylsiladiyl(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl

[0869] dimethylsiladiyl(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[0870] dimethylsiladiyl(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[0871] dimethylsiladiyl(2-isobutyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[0872] dimethylsiladiyl(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[0873] dimethylsiladiyl(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[0874] dimethylsiladiyl(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl;

[0875] dimethylsiladiyl(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl;

[0876] dimethylsiladiyl(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl;

[0877] dimethylsiladiyl(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl;

[0878] dimethylsiladiyl(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[0879] dimethylsiladiyl(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[0880] dimethylsiladiyl(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[0881] 9-silafluorendiyl(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[0882] 9-silafluorendiyl(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[0883] 9-silafluorendiyl(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[0884] 9-silafluorendiyl(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[0885] 9-silafluorendiyl(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[0886] 9-silafluorendiyl(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[0887] 9-silafluorendiyl(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[0888] 9-silafluorendiyl(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl;

[0889] 9-silafluorendiyl(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl;

[0890] 9-silafluorendiyl(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl;

[0891] 9-silafluorendiyl(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl;

[0892] 9-silafluorendiyl(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl,

[0893] 9-silafluorendiyl(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl;

[0894] 9-silafluorendiyl(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl;

[0895] dimethylsiladiyl(2-methyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[0896] dimethylsiladiyl(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[0897] dimethylsiladiyl(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[0898] dimethylsiladiyl(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[0899] dimethylsiladiyl(2-n-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[0900] dimethylsiladiyl(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[0901] dimethylsiladiyl(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[0902] dimethylsiladiyl(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[0903] dimethylsiladiyl(2-methyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride;

[0904] dimethylsiladiyl(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride;

[0905] dimethylsiladiyl(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride;

[0906] dimethylsiladiyl(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride;

[0907] dimethylsiladiyl(2-n-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride;

[0908] dimethylsiladiyl(2-iso-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride;

[0909] dimethylsiladiyl(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride;

[0910] dimethylsiladiyl(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride;

[0911] 9-silafluorendiyl(2-methyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[0912] 9-silafluorendiyl(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[0913] 9-silafluorendiyl(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[0914] 9-silafluorendiyl(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[0915] 9-silafluorendiyl(2-n-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[0916] 9-silafluorendiyl(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[0917] 9-silafluorendiyl(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[0918] 9-silafluorendiyl(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[0919] 9-silafluorendiyl(2-methyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride;

[0920] 9-silafluorendiyl(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride;

[0921] 9-silafluorendiyl(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride;

[0922] 9-silafluorendiyl(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride;

[0923] 9-silafluorendiyl(2-n-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride;

[0924] 9-silafluorendiyl(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride;

[0925] 9-silafluorendiyl(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride;

[0926] 9-silafluorendiyl(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride;

[0927] dimethylsiladiyl(2-methyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[0928] dimethylsiladiyl(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[0929] dimethylsiladiyl(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[0930] dimethylsiladiyl(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[0931] dimethylsiladiyl(2-n-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[0932] dimethylsiladiyl(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[0933] dimethylsiladiyl(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[0934] dimethylsiladiyl(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[0935] dimethylsiladiyl(2-methyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl;

[0936]dimethylsiladiyl(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafniumdimethyl;

[0937] dimethylsiladiyl(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl;

[0938] dimethylsiladiyl(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl;

[0939] dimethylsiladiyl(2-n-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl;

[0940] dimethylsiladiyl(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl;

[0941] dimethylsiladiyl(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl;

[0942] dimethylsiladiyl(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl;

[0943] 9-silafluorendiyl(2-methyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[0944] 9-silafluorendiyl(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[0945] 9-silafluorendiyl(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[0946] 9-silafluorendiyl(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[0947] 9-silafluorendiyl(2-n-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[0948] 9-silafluorendiyl(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[0949] 9-silafluorendiyl(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[0950] 9-silafluorendiyl(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[0951] 9-silafluorendiyl(2-methyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl;

[0952] 9-silafluorendiyl(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride;

[0953] 9-silafluorendiyl(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl;

[0954] 9-silafluorendiyl(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl;

[0955] 9-silafluorendiyl(2-n-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl;

[0956] 9-silafluorendiyl(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl;

[0957] 9-silafluorendiyl(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl;

[0958] 9-silafluorendiyl(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl;

[0959] dimethylsiladiyl(2-methyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene,

[0960] dimethylsiladiyl(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0961] dimethylsiladiyl(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0962] dimethylsiladiyl(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-diphenyl-1,3-butadiene;

[0963] dimethylsiladiyl(2-n-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0964] dimethylsiladiyl(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0965] dimethylsiladiyl(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3butadiene;

[0966] dimethylsiladiyl(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0967] dimethylsiladiyl(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0968] dimethylsiladiyl(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene,

[0969] dimethylsiladiyl(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0970] dimethylsiladiyl(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0971] dimethylsiladiyl(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0972] dimethylsiladiyl(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0973] dimethylsiladiyl(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0974] dimethylsiladiyl(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0975] dimethylsiladiyl(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0976] dimethylsiladiyl(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0977] dimethylsiladiyl(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0978] dimethylsiladiyl(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0979] dimethylsiladiyl(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0980] dimethylsiladiyl(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0981] dimethylsiladiyl(2-methyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0982] dimethylsiladiyl(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0983] dimethylsiladiyl(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0984] dimethylsiladiyl(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0985] dimethylsiladiyl(2-n-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0986] dimethylsiladiyl(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0987] dimethylsiladiyl(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0988] dimethylsiladiyl(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0989] 9-silafluorendiyl(2-methyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0990] 9-silafluorendiyl(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0991] 9-silafluorendiyl(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0992] 9-silafluorendiyl(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0993] 9-silafluorendiyl(2-n-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0994] 9-silafluorendiyl(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0995] 9-silafluorendiyl(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0996] 9-silafluorendiyl(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0997] 9-silafluorendiyl(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[0998] 9-silafluorendiyl(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3butadiene;

[0999] 9-silafluorendiyl(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1000] 9-silafluorendiyl(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1001] 9-silafluorendiyl(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1002] 9-silafluorendiyl(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1003] 9-silafluorendiyl(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1004] 9-silafluorendiyl(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1005] 9-silafluorendiyl(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1006] 9-silafluorendiyl(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)η⁴-1,4-diphenyl-1,3-butadiene;

[1007] 9-silafluorendiyl(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1008] 9-silafluorendiyl(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1009] 9-silafluorendiyl(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1010] 9-silafluorendiyl(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1011] 9-silafluorendiyl(2-methyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1012] 9-silafluorendiyl(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1013] 9-silafluorendiyl(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1014] 9-silafluorendiyl(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1015] 9-silafluorendiyl(2-n-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1016] 9-silafluorendiyl(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1017] 9-silafluorendiyl(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1018] 9-silafluorendiyl(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1019] dimethylamidoborane(2-methyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[1020] dimethylamidoborane(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[1021] dimethylamidoborane(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[1022] dimethylamidoborane(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[1023] dimethylamidoborane(2-n-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[1024] dimethylamidoborane(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[1025] dimethylamidoborane(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[1026] dimethylamidoborane(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[1027] dimethylamidoborane(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[1028] dimethylamidoborane(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[1029] dimethylamidoborane(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[1030] dimethylamidoborane(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[1031] dimethylamidoborane(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[1032] dimethylamidoborane(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[1033] dimethylamidoborane(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[1034] dimethylamidoborane(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[1035] dimethylamidoborane(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride

[1036] dimethylamidoborane(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[1037] dimethylamidoborane(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[1038] dimethylamidoborane(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[1039] dimethylamidoborane(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[1040] dimethylamidoborane(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[1041] dimethylamidoborane(2-methyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[1042] dimethylamidoborane(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[1043] dimethylamidoborane(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[1044] dimethylamidoborane(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[1045] dimethylamidoborane(2-n-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[1046] dimethylamidoborane(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[1047] dimethylamidoborane(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[1048] dimethylamidoborane(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[1049] dimethylamidoborane(2-methyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1050] dimethylamidoborane(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1051] dimethylamidoborane(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1052] dimethylamidoborane(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1053] dimethylamidoborane(2-n-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1054] dimethylamidoborane(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1055] dimethylamidoborane(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1056] dimethylamidoborane(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1057] dimethylamidoborane(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1058] dimethylamidoborane(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1059] dimethylamidoborane(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1060] dimethylamidoborane(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1061] dimethylamidoborane(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1062] dimethylamidoborane(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1063] dimethylamidoborane(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1064] dimethylamidoborane(2-ethyl,4-[3,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene,

[1065] dimethylamidoborane(2-n-propyl,4-[3′,5′-di-isopropylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1066] dimethylamidoborane(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)η⁴-1,4-diphenyl-1,3-butadiene;

[1067] dimethylamidoborane(2-n-butyl,4-[3′,5′-di-isopropylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1068] dimethylamidoborane(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1069] dimethylamidoborane(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1070] dimethylamidoborane(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1071] dimethylamidoborane(2-methyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1072] dimethylamidoborane(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1073] dimethylamidoborane(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1074] dimethylamidoborane(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1075] dimethylamidoborane(2-n-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1076] dimethylamidoborane(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1077] dimethylamidoborane(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1078] dimethylamidoborane(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1079] dimethylamidoborane(2-methyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[1080] dimethylamidoborane(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[1081] dimethylamidoborane(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[1082] dimethylamidoborane(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[1083] dimethylamidoborane(2-n-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[1084] dimethylamidoborane(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[1085] dimethylamidoborane(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[1086] dimethylamidoborane(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[1087] dimethylamidoborane(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[1088] dimethylamidoborane(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[1089] dimethylamidoborane(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[1090] dimethylamidoborane(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[1091] dimethylamidoborane(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[1092] dimethylamidoborane(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[1093] dimethylamidoborane(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[1094] dimethylamidoborane(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[1095] dimethylamidoborane(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl

[1096] dimethylamidoborane(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[1097] dimethylamidoborane(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[1098] dimethylamidoborane(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[1099] dimethylamidoborane(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[1100] dimethylamidoborane(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[1101] dimethylamidoborane(2-methyl,4-[3′,5′-di-phenylphenyl]indenyl)zirconium dimethyl;

[1102] dimethylamidoborane(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[1103] dimethylamidoborane(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[1104] dimethylamidoborane(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[1105] dimethylamidoborane(2-n-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[1106] dimethylamidoborane(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[1107] dimethylamidoborane(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[1108] dimethylamidoborane(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[1109] diisopropylamidoborane(2-methyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[1110] diisopropylamidoborane(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[1111] diisopropylamidoborane(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[1112] diisopropylamidoborane(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[1113] diisopropylamidoborane(2-n-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[1114] diisopropylamidoborane(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[1115] diisopropylamidoborane(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[1116] diisopropylamidoborane(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[1117] diisopropylamidoborane(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[1118] diisopropylamidoborane(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[1119] diisopropylamidoborane(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[1120] diisopropylamidoborane(2-n-butyl,4-[3′,5′-bis-trifluormethylphenyl]indenyl)₂zirconium dichloride;

[1121] diisopropylamidoborane(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[1122] diisopropylamidoborane(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[1123] diisopropylamidoborane(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[1124] diisopropylamidoborane(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[1125] diisopropylamidoborane(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride

[1126] diisopropylamidoborane(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride,

[1127] diisopropylamidoborane(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[1128] diisopropylamidoborane(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[1129] diisopropylamidoborane(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[1130] diisopropylamidoborane(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[1131] diisopropylamidoborane(2-methyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[1132] diisopropylamidoborane(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[1133] diisopropylamidoborane(2-n-propyl,4-[3′,5′-(di-phenylphenyl]indenyl)₂zirconium dichloride;

[1134] diisopropylamidoborane(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[1135] diisopropylamidoborane(2-n-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[1136] diisopropylamidoborane(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[1137] diisopropylamidoborane(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[1138] diisopropylamidoborane(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[1139] diisopropylamidoborane(2-methyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1140] diisopropylamidoborane(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1141] diisopropylamidoborane(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1142] diisopropylamidoborane(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1143] diisopropylamidoborane(2-n-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1144] diisopropylamidoborane(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1145] diisopropylamidoborane(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1146] diisopropylamidoborane(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1147] diisopropylamidoborane(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1148] diisopropylamidoborane(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1149] diisopropylamidoborane(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1150] diisopropylamidoborane(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1151] diisopropylamidoborane(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1152] diisopropylamidoborane(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1153] diisopropylamidoborane(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1154] diisopropylamidoborane(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1155] diisopropylamidoborane(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1156] diisopropylamidoborane(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1157] diisopropylamidoborane(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1158] diisopropylamidoborane(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1159] diisopropylamidoborane(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1160] diisopropylamidoborane(2-methyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η^(1,4)-diphenyl-1,3-butadiene;

[1161] diisopropylamidoborane(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1162] diisopropylamidoborane(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1163] diisopropylamidoborane(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1164] diisopropylamidoborane(2-n-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1165] diisopropylamidoborane(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1166] diisopropylamidoborane(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1167] diisopropylamidoborane(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1168] diisopropylamidoborane(2-methyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[1169] diisopropylamidoborane(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[1170] diisopropylamidoborane(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[1171] diisopropylamidoborane(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[1172] diisopropylamidoborane(2-n-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[1173] diisopropylamidoborane(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[1174] diisopropylamidoborane(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[1175] diisopropylamidoborane(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[1176] diisopropylamidoborane(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;,

[1177] diisopropylamidoborane(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[1178] diisopropylamidoborane(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[1179] diisopropylamidoborane(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[1180] diisopropylamidoborane(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[1181] diisopropylamidoborane(2-sec-butyl,;4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[1182] diisopropylamidoborane(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[1183] diisopropylamidoborane(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[1184] diisopropylamidoborane(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl

[1185] diisopropylamidoborane(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[1186] diisopropylamidoborane(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[1187] diisopropylamidoborane(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[1188] diisopropylamidoborane(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[1189] diisopropylamidoborane(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[1190] diisopropylamidoborane(2-methyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[1191] diisopropylamidoborane(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[1192] diisopropylamidoborane(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[1193] diisopropylamidoborane(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[1194] diisopropylamidoborane(2-n-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[1195] diisopropylamidoborane(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[1196] diisopropylamidoborane(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[1197] diisopropylamidoborane(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[1198] bis(trimethylsilyl)amidoborane(2-methyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[1199] bis(trimethylsilyl)amidoborane(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[1200] bis(trimethylsilyl)amidoborane(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[1201] bis(trimethylsilyl)amidoborane(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[1202] bis(trimethylsilyl)amidoborane(2-n-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[1203] bis(trimethylsilyl)amidoborane(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[1204] bis(trimethylsilyl)amidoborane(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[1205] bis(trimethylsilyl)amidoborane(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride;

[1206] bis(trimethylsilyl)amidoborane(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[1207] bis(trimethylsilyl)amidoborane(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[1208] bis(trimethylsilyl)amidoborane(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[1209] bis(trimethylsilyl)amidoborane(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[1210] bis(trimethylsilyl)amidoborane(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[1211] bis(trimethylsilyl)amidoborane(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[1212] bis(trimethylsilyl)amidoborane(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride;

[1213] bis(trimethylsilyl)amidoborane(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[1214] bis(trimethylsilyl)amidoborane(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[1215] bis(trimethylsilyl)amidoborane(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[1216] bis(trimethylsilyl)amidoborane(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[1217] bis(trimethylsilyl)amidoborane(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[1218] bis trimethylsilyl6)amidoborane(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[1219] bis(trimethylsilyl)amidoborane(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride;

[1220] bis(trimethylsilyl)amidoborane(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[1221] bis(trimethylsilyl)amidoborane(2-ethyl,4-[3′,5′-di-propylphenyl]indenyl)₂zirconium dichloride;

[1222] bis(trimethylsilyl)amidoborane(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[1223] bis(trimethylsilyl)amidoborane(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[1224] bis(trimethylsilyl)amidoborane(2-n-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[1225] bis(trimethylsilyl)amidoborane(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[1226] bis(trimethylsilyl)amidoborane(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[1227] bis(trimethylsilyl)amidoborane(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride;

[1228] bis(trimethylsilyl)amidoborane(2-methyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂ η⁴-1,4-diphenyl-1,3-butadiene;

[1229] bis(trimethylsilyl)amidoborane(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂ η⁴-1,4-diphenyl-1,3-butadiene;

[1230] bis(trimethylsilyl)amidoborane(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂ η⁴-1,4-diphenyl-1,3-butadiene;

[1231] bis(trimethylsilyl)amidoborane(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂ η⁴-1,4-diphenyl-1,3-butadiene;

[1232] bis(trimethylsilyl)amidoborane(2-n-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂ η⁴-1,4-diphenyl-1,3-butadiene;

[1233] bis(trimethylsilyl)amidoborane(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂ η⁴-1,4-diphenyl-1,3-butadiene;

[1234] bis(trimethylsilyl)amidoborane(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂ η⁴-1,4-diphenyl-1,3-butadiene;

[1235] bis(trimethylsilyl)amidoborane(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂ η⁴-1,4-diphenyl-1,3-butadiene;

[1236] bis(trimethylsilyl)amidoborane(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂ η⁴-diphenyl-1,3-butadiene;

[1237] bis(trimethylsilyl)amidoborane(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1238] bis(trimethylsilyl)amidoborane(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1239] bis(trimethylsilyl)amidoborane(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1240] bis(trimethylsilyl)amidoborane(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1241] bis(trimethylsilyl)amidoborane(2-sec-butyl,4-[3′,5′-bis-difluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1242] bis(trimethylsilyl)amidoborane(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene;

[1243] bis(trimethylsilyl)amidoborane(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂ η⁴-1,4-diphenyl-1,3-butadiene;

[1244] bis(trimethylsilyl)amidoborane(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂ η⁴-1,4-diphenyl-1,3-butadiene;

[1245] bis(trimethylsilyl)amidoborane(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl) η⁴-1,4diphenyl-1,3-butadiene;

[1246] bis(trimethylsilyl)amidoborane(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂ η⁴-1,4-diphenyl-1,3-butadiene;

[1247] bis(trimethylsilyl)amidoborane(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂ η⁴-1,4-diphenyl-1,3-butadiene;

[1248] bis(trimethylsilyl)amidoborane(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂ η⁴-1,4-diphenyl-1,3-butadiene;

[1249] bis(trimethylsilyl)amidoborane(2-tert-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂ η⁴-1,4-diphenyl-1,3-butadiene;

[1250] bis(trimethylsilyl)amidoborane(2-methyl,4-[3′,5′-di-phenylphenyl]indenyl)₂ η⁴-1,4-diphenyl-1,3-butadiene;

[1251] bis(trimethylsilyl)amidoborane(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂ η⁴-1,4-diphenyl-1,3butadiene;

[1252] bis(trimethylsilyl)amidoborane(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂ η⁴-1,4-diphenyl-1,3-butadiene;

[1253] bis(trimethylsilyl)amidoborane(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂ η⁴-1,4-diphenyl-1,3-butadiene;

[1254] bis(trimethylsilyl)amidoborane(2-n-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂ η⁴-1,4-diphenyl-1,3-butadiene;

[1255] bis(trimethylsilyl)amidoborane(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl₂ η⁴-1,4-diphenyl-1,3-butadiene;

[1256] bis(trimethylsilyl)amidoborane(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂ η⁴-1,4-diphenyl-1,3-butadiene;

[1257] bis(trimethylsilyl)amidoborane(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂ η⁴-1,4diphenyl-1,3butadiene;

[1258] bis(trimethylsilyl)amidoborane(2-methyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[1259] bis(trimethylsilyl)amidoborane(2-ethyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[1260] bis(trimethylsilyl)amidoborane(2-n-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[1261] bis(trimethylsilyl)amidoborane(2-iso-propyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[1262] bis(trimethylsilyl)amidoborane(2-n-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[1263] bis(trimethylsilyl)amidoborane(2-iso-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[1264] bis(trimethylsilyl)amidoborane(2-sec-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[1265] bis(trimethylsilyl)amidoborane(2-tert-butyl,4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl;

[1266] bis(trimethylsilyl)amidoborane(2-ethyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[1267] bis(trimethylsilyl)amidoborane(2-n-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[1268] bis(trimethylsilyl)amidoborane(2-iso-propyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[1269] bis(trimethylsilyl)amidoborane(2-n-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[1270] bis(trimethylsilyl)amidoborane(2-iso-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[1271] bis(trimethylsilyl)amidoborane(2-sec-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[1272] bis(trimethylsilyl)amidoborane(2-tert-butyl,4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl;

[1273] bis(trimethylsilyl)amidoborane(2-ethyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[1274] bis(trimethylsilyl)amidoborane(2-n-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[1275] bis(trimethylsilyl)amidoborane(2-iso-propyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[1276] bis(trimethylsilyl)amidoborane(2-n-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[1277] bis(trimethylsilyl)amidoborane(2-iso-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[1278] bis(triethylsilyl)amidoborane(2-sec-butyl,4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl;

[1279]bis(trimethylsilyl)amidoborane(2-tert-butyl-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconiumdimethyl;

[1280] bis(trimethylsilyl)amidoborane(2-methyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[1281] bis(trimethylsilyl)amidoborane(2-ethyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[1282] bis(trimethylsilyl)amidoborane(2-n-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[1283] bis(trimethylsilyl)amidoborane(2-iso-propyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[1284] bis(trimethylsilyl)amidoborane(2-n-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[1285] bis(trimethylsilyl)amidoborane(2-iso-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[1286] bis(trimethylsilyl)amidoborane(2-sec-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl;

[1287] bis(trimethylsilyl)amidoborane(2-tert-butyl,4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl.

[1288] 51. The process of claim 1 wherein the first catalyst componentis also present in the second reaction zone.

[1289] 52. The process of claim 1 wherein one catalyst component ispresent in at least one reaction zone and the other catalyst componentis present in the second reaction zone.

[1290] 53. The process of claim 1 wherein 3% or more of the combinedcatalyst components is not injected into the first reaction zone.

[1291] 54. The process of claim 1 wherein hydrogen is introduced into areaction zone.

[1292] 55. The process of claim 1 wherein the temperature is differentin the reaction zones.

[1293] 56. The process of claim 1 wherein the temperature in a reactionzone is varied.

[1294] XXXXXXXXXXXXx

[1295] Characterization and Tests

[1296] Molecular weights (number average molecular weight (Mn), weightaverage molecular weight (Mw), and z-average molecular weight (Mz)) weredetermined using a Waters 150 Size Exclusion Chromatograph (SEC)equipped with a differential refractive index detector (DRI), an onlinelow angle light scattering (LALLS) detector and a viscometer (VIS). Thedetails of the detector calibrations have been described elsewhere[Reference: T. Sun, P. Brant, R. R. Chance, and W. W. Graessley,Macromolecules, Volume 34, Number 19, 6812-6820, (2001)]; attached beloware brief descriptions of the components.

[1297] The SEC with three Polymer Laboratories PLgel 10 mm Mixed-Bcolumns, a nominal flow rate 0.5 cm³/min, and a nominal injection volume300 microliters was common to both detector configurations. The varioustransfer lines, columns and differential refractometer (the DRIdetector, used mainly to determine eluting solution concentrations) werecontained in an oven maintained at 135° C.

[1298] The LALLS detector was the model 2040 dual-angle light scatteringphotometer (Precision Detector Inc.). Its flow cell, located in the SECoven, uses a 690 nm diode laser light source and collects scatteredlight at two angles, 15° and 90°. Only the 15° output was used in theseexperiments. Its signal was sent to a data acquisition board (NationalInstruments) that accumulates readings at a rate of 16 per second. Thelowest four readings were averaged, and then a proportional signal wassent to the SEC-LALLS-VIS computer. The LALLS detector was placed afterthe SEC columns, but before the viscometer.

[1299] The viscometer was a high temperature Model 150R (ViscotekCorporation). It consisted of four capillaries arranged in a Wheatstonebridge configuration with two pressure transducers. One transducermeasured the total pressure drop across the detector, and the other,positioned between the two sides of the bridge, measured a differentialpressure. The specific viscosity for the solution flowing through theviscometer was calculated from their outputs. The viscometer was insidethe SEC oven, positioned after the LALLS detector but before the DRIdetector.

[1300] Solvent for the SEC experiment was prepared by adding 6 grams ofbutylated hydroxy toluene (BHT) as an antioxidant to a 4 liter bottle of1,2,4 Trichlorobenzene (TCB) (Aldrich Reagent grade) and waiting for theBHT to solubilize. The TCB mixture was then filtered through a 0.7micron glass pre-filter and subsequently through a 0.1 micron Teflonfilter. There was an additional online 0.7 micron glass pre-filter/0.22micron Teflon filter assembly between the high pressure pump and SECcolumns. The TCB was then degassed with an online degasser (Phenomenex,Model DG-4000) before entering the SEC.

[1301] Polymer solutions were prepared by placing dry polymer in a glasscontainer, adding the desired amount of TCB, then heating the mixture at160 ° C. with continuous agitation for about 2 hours. All quantitieswere measured gravimetrically. The TCB densities used to express thepolymer concentration in mass/volume units were 1.463 g/ml at roomtemperature and 1.324 g/ml at 135° C. The injection concentration rangedfrom 1.0 to 2.0 mg/ml, with lower concentrations being used for highermolecular weight samples.

[1302] Prior to running each sample the DRI detector and the injectorwere purged. Flow rate in the apparatus was then increased to 0.5ml/minute, and the DRI was allowed to stabilize for 8-9 hours beforeinjecting the first sample. The argon ion laser was turned on 1 to 1.5hours before running samples by running the laser in idle mode for 20-30minutes and then switching to full power in light regulation mode.

[1303] The branching index was measured using SEC with an on-lineviscometer (SEC-VIS) and are reported as g′ at each molecular weight inthe SEC trace. The branching index g′ is defined as:

g′=η _(b)/η_(l)

[1304] where η_(b) is the intrinsic viscosity of the branched polymerand η_(l) is the intrinsic viscosity of a linear polymer of the sameviscosity-averaged molecular weight (M_(v)) as the branched polymer.η_(l)=KM_(v) ^(α), K and α were measured values for linear polymers andshould be obtained on the same SEC-DRI-LS-VIS instrument as the one usedfor branching index measurement. For polypropylene samples presented inthis invention, K=0.0002288 and α=0.705 were used. The SEC-DRI-LS-VISmethod obviates the need to correct for polydispersities, since theintrinsic viscosity and the molecular weight were measured at individualelution volumes, which arguably contain narrowly dispersed polymer.Linear polymers selected as standards for comparison should be of thesame viscosity average molecular weight, monomer content and compositiondistribution. Linear character for polymer containing C2 to C10 monomersis confirmed by Carbon-13 NMR the method of Randall (Rev. Macromol.Chem. Phys., C29 (2&3), p. 285-297). Linear character for C11 and abovemonomers is confirmed by GPC analysis using a MALLS detector. Forexample, for a copolymer of propylene, the NMR should not indicatebranching greater than that of the co-monomer (i.e. if the comonmer isbutene, branches of greater than two carbons should not be present). Fora homopolymer of propylene, the GPC should not show branches of morethan one carbon atom. When a linear standard is desired for a polymerwhere the comomoner is C9 or more, one can refer to T. Sun, P. Brant, R.R. Chance, and W. W. Graessley, Macromolecules, Volume 34, Number 19,6812-6820, (2001) for protocols on determining standards for thosepolymers. In the case of syndiotactic polymers, the standard should havea comparable amount of syndiotacticty as measured by Carbon 13 NMR.

[1305] Peak melting point (Tm), peak crystallization temperature (Tc),heat of fusion and crystallinity were determined using the followingprocedure according to ASTM E 794-85. Differential scanning calorimetric(DSC) data was obtained using a TA Instruments model 2920 machine.Samples weighing approximately 7-10 mg were sealed in aluminum samplepans. The DSC data was recorded by first cooling the sample to −50° C.and then gradually heating it to 200 ° C at a rate of 10° C./minute. Thesample was kept at 200° C. for 5 minutes before a second cooling-heatingcycle was applied. Both the first and second cycle thermal events wererecorded. Areas under the melting curves were measured and used todetermine the heat of fusion (delta H) and the degree of crystallinity.The percent crystallinity was calculated using the formula, [area underthe curve (Joules/gram)/B (Joules/gram)]*100, where B is the heat offusion for the homopolymer of the major monomer component. These valuesfor B are to be obtained from the Polymer Handbook, Fourth Edition,published by John Wiley and Sons, New York 1999. A value of 189 J/g (B)was used as the heat of fusion for 100% crystalline polypropylene. Forpolymers displaying multiple melting or crystallization peaks, thehighest melting peak was taken as peak melting point, and the highestcrystallization peak was taken as peak crystallization temperature.

[1306] The glass transition temperature (Tg) was measured by ASTM E 1356using a TA Instruments model 2920 machine.

[1307] Melt Viscosity (ASTM D-3236) (also called “viscosity”,“Brookfield viscosity”) Melt viscosity profiles were typically measuredat temperatures from 120° C. to 190° C. using a Brookfield Thermoselviscometer and a number 27 spindle.

[1308] General Procedure of Polymerization

[1309] Polymerization was performed in a series dual-reactor continuoussolution process. Both of the reactors were a 0.5-liter stainless steelautoclave reactor and were equipped with a stirrer, awater-cooling/steam-heating element with a temperature controller, and apressure controller. Solvents, monomers such as ethylene and propylene,and comonomers (such as butene and hexene), if present, were firstpurified by passing through a three-column purification system. Thepurification system consisted of an Oxiclear column (Model # RGP-R1-500from Labclear) followed by a 5A and a 3A molecular sieve columns.Purification columns were regenerated periodically whenever there wasevidence of lower activity of polymerization. Both the 3A and 5Amolecular sieve columns were regenerated in-house under nitrogen at aset temperature of 260° C. and 315° C., respectively. The molecularsieve material was purchased from Aldrich. Oxiclear column wasregenerated in the original manufacture.

[1310] The solvent feed to the reactors was measured by a mass-flowmeter. A Pulsafeed pump controlled the solvent flow rate and increasedthe solvent pressure to the reactors. The compressed, liquifiedpropylene feed was measured by a mass flow meter and the flow wascontrolled by a variable speed pump. The monomers were fed into thereactor through pulse pump (>5 ml/minute) or Eldex pump (<5 ml/minute)and the flow rates were measured using Brooksfield mass flow meters orMicro-Motion Coriolis-type flow meters. The solvent, monomers andcomonomers were fed into a manifold first. Ethylene from in-house supplywas delivered as a gas solubilized in the chilled solvent/monomermixture in the manifold. The mixture of solvent and monomers were thenchilled to about −15° C. by passing through a chiller prior to feedinginto the reactor through a single tube. Ethylene flow rate was meteredthrough a Brookfield mass flow controller. A mass flow controller wasused to deliver hydrogen into the reactor.

[1311] The content of the first reactor flowed into the second reactor.The exit of the first reactor was connected by an insulated tubing to asecond reactor similarly equipped to the first, with a provision forindependent catalyst and cocatalyst addition, and additional monomer,hydrogen, solvent addition and reaction temperature control. After thepolymer solution stream exited the second reactor, polymerization wasstopped with the addition of a small amount of water.

[1312] The catalyst compounds used to produce semi-crystallinepolypropylene wererac-dimethylsilylbis(2-methyl-4-phenylindenyl)zirconium dimethyl(obtained from Albemarle) andrac-1,2-ethylene-bis(4,7-dimethylindenyl)hafnium dimethyl (obtained fromBoulder Scientific Company).

[1313] The catalyst compounds used to produce amorphous polypropylenewere,dimethylsilyl(tetramethylcyclopentadienyl)(cyclododecylamido)titaniumdimethyl (obtained from Albemarle) and[di(p-triethylsilylphenyl)methylene](cyclopentadienyl)(3,8-di-t-butylfluorenyl)hafnium dimethyl (obtained from Albemarle).

[1314] The catalysts were preactivated with N,N-dimethylaniliniumtetrakis(pentafluorophenyl)borate (obtained from Albemarle) at a molarratio of 1:1 to 1:1.1 in 700 ml of toluene at least 10 minutes prior tothe polymerization reaction. The catalyst systems were diluted to aconcentration of catalyst ranging from 0.2 to 1.4 mg/ml in toluene. Allcatalyst solutions were kept in an inert atmosphere with <1.5 ppm watercontent and fed into reactors by metering pumps. The catalyst solutionwas used for all polymerization runs carried out in the same day. Newbatch of catalyst solution was prepared when more than 700 ml ofcatalyst solution was consumed in one day.

[1315] When multiple catalysts were utilized in one reactor, eachcatalyst solution was pumped through separate lines, and then mixed in amanifold, and fed into the reactor through a single line. The connectingtube between the catalyst manifold and reactor inlet was about one meterlong. The contact of catalyst, solvent and monomers took place in thereactor. Catalyst pumps were calibrated periodically using toluene asthe calibrating medium. Catalyst concentration in the feed wascontrolled through changing the catalyst concentration in catalystsolution and/or changing in the feed rate of catalyst solution. The feedrate of catalyst solution varied in a range of 0.2 to 5 ml/minute.

[1316] As an impurity scavenger, 250 ml of tri-n-octylaluminum (TNOA)(25 wt. % in toluene, Akzo Noble) was diluted in 22.83 kilogram ofhexane. The diluted TNOA solution was stored in a 37.9-liter cylinderunder nitrogen blanket. The solution was used for all polymerizationruns until about 90% of consumption, and then a new batch was prepared.Feed rates of the tri-n-octylaluminum (TNOA) solution varied frompolymerization reaction to reaction, ranging from 0 (no scavenger) to 4ml per minutes in order to optimize the overall catalyst efficiency.

[1317] For polymerization reactions involving alpha, omega-dienes,1,9-decadiene was diluted to a concentration ranging from 4.8 to 9.5vol. % in toluene. The diluted solution was then fed into the reactor bya metering pump through a comonomer line. The 1,9-decadiene was obtainedfrom Aldrich and was purified by first passing through alumina activatedat high temperature under nitrogen, followed by molecular sieveactivated at high temperature under nitrogen.

[1318] The reactors were first cleaned by continuously pumping solvent(e.g., hexane) and scavenger through the reactor system for at least onehour at a maximum allowed temperature (about 150° C.). After cleaning,the reactors were heated/cooled to the desired temperature usingwater/steam mixture flowing through the reactor jacket and controlled ata set pressure with controlled solvent flow. Monomers and catalystsolutions were then fed into the reactor. An automatic temperaturecontrol system was used to control and to maintain the reactors at settemperatures. Onset of polymerization activity was determined byobservations of a viscous product and lower temperature of water-steammixture. Once the activity was established and system reached steadystate, the reactors were lined out by continuing operating the systemunder the established condition for a time period of at least five timesof mean residence time prior to sample collection. The resulting mixturefrom the second reactor, containing mostly solvent, polymer andunreacted monomers, was collected in a collection box. The collectedsamples were first air-dried in a hood to evaporate most of the solvent,and then dried in a vacuum oven at a temperature of about 90° C. forabout 12 hours. The vacuum oven dried samples were weighed to obtainyields. All the reactions were carried out at a pressure of about 2.41MPa-g and in the temperature range of 70 to 130° C.

EXAMPLE 1a-1f

[1319] These examples demonstrate a series dual-reactor continuoussolution process with the use of rac-dimethylsilylbis(2-methyl-4-phenylindenyl)zirconium dimethyl catalyst (Catalyst A)(obtained from Albemarle) in the first reactor to produce isotacticpolypropylene and [di(p-triethylsilylphenyl)methylene](cyclopentadienyl)(3,8-di-t-butylfluorenyl)hafnium dimethyl catalyst (Catalyst B)(obtained from Albemarle) in the second reactor to produce amorphouspolypropylene. Molecular weight of the isotactic polypropylene wascontrolled using reaction temperature and molecular weight of theamorphous polypropylene was adjusted through the addition of hydrogen asa molecular weight control agent. Propylene, solvent, catalyst Asolution and scavenger were fed into the first reactor. The content ofthe first reactor flows into the second reactor. Catalyst B solution andhydrogen were fed into the second reactor. The general proceduredescribed above was followed, and the detailed reaction condition andpolymer properties are listed in Table 1. TABLE 1 Example 1a 1b 1c 1d 1e1f Reactor 1 125 120 115 125 120 115 Temperature (° C.) Reactor 2 125125 125 125 125 125 Temperature (° C.) Hexane feed rate to 90 90 90 9090 90 reactor 1 (ml/min) Propylene feed rate 28.3 28.3 28.3 28.3 28.328.3 to reactor 1 (g/min) Catalyst B feed 9.42E−07 9.42E−07 9.42E−079.42E−07 9.42E−07 9.42E−07 rate to reactor 2 (mole/min) Catalyst A feed4.89E−08 4.89E−08 4.89E−08 5.59E−08 5.59E−08 5.59E−08 rate to reactor 1(mole/min) H2 feed rate to 20 20 20 20 20 20 reactor 2 (cc/min) Tc (°C.) 90.4 99.7 99.7 98.1 101.1 101.1 Tm (° C.) 131.6 150.0 152.4 145.3149.9 151.6 Tg (° C.) −10.9 −7.1 −7.0 −2.4 −8.3 −8.1 delta H (J/g) 21.844.4 52.9 42.5 52.9 53.8 Mn (kg/mol) 15.7 12.8 12.3 16.9 12.0 13.3 Mw(kg/mol) 37.0 34.4 37.9 49.3 32.9 37.4 Mz (kg/mol) 79.8 66.1 72.7 186.063.5 73.8 g′ @Mz 0.9 0.88 0.88 0.81 0.86 0.88 Viscosity @190° C. 26902000 2560 5980 1470 2350 (cp)

EXAMPLE 2a-2f

[1320] These examples demonstrate a series dual-reactor continuoussolution process with the use of rac-dimethylsilylbis(2-methyl-4-phenylindenyl)zirconium dimethyl catalyst (Catalyst A) inthe first reactor to produce isotactic polypropylene and[di(p-triethylsilylphenyl)methylene] (cyclopentadienyl)(3,8-di-t-butylfluorenyl)hafnium dimethyl catalyst (Catalyst B) in thesecond reactor to produce propylene/ethylene copolymer. Propylene,solvent, catalyst A solution and scavenger were fed into the firstreactor. The content of the first reactor flows into the second reactor.Ethylene and catalyst B solution were fed into the second reactor. Thecrystallinity of ethylene/propylene copolymers was adjusted throughpropylene conversion in the first reactor and amount of ethylene fedinto the second reactor. Sufficient ethylene fed rate is required inorder to produce amorphous ethylene/propylene copolymer. The generalprocedure described above was followed, and the detailed reactioncondition and polymer properties are listed in Table 2. TABLE 2 Example2a 2b 2c 2d 2e 2f Reactor 1 118 125 125 125 125 125 Temperature (° C.)Reactor 2 120 125 125 125 125 125 Temperature (° C.) Propylene feed rate14 28.3 28.3 28.3 28.3 28.3 to reactor 1 (g/min) Ethylene feed rate 0.60.6 0.6 0.6 0.6 0.6 to reactor 2 (SLPM) Hexane feed rate to 90 90 90 9090 90 reactor 1 (ml/min) Catalyst B feed 8.83E−07 5.89E−07 5.89E−075.89E−07 5.89E−07 5.89E−07 rate to reactor 2 (mole/min) Catalyst A feed1.40E−07 1.40E−07 6.99E−08 6.99E−08 6.99E−08 4.89E−08 rate to reactor 1(mole/min) H2 feed rate to 0 20 30 10 20 30 reactor 2 (cc/min) Tc (° C.)98.9 97.3 82.2 92.5 61.1 60.6 Tm (° C.) 150.5 138.0 144.3 147.9 110.3108.1 Tg (° C.) −15.8 −16.5 −16.1 −16.5 −13.5 −13.7 delta H (J/g) 47.968.5 21.6 37.1 19.3 15.1 Mn 17.8 Mw 42.1 Mz 76.8 g′ @Mz 0.79 Viscosity@190° C. 2620 518 1290 1390 3040 1800 (cp) Ethylene content 5.4 (wt %)

EXAMPLE 3a-3e

[1321] These examples demonstrate a series dual-reactor continuoussolution process with the use of rac-dimethylsilylbis(2-methyl-4-phenylindenyl)zirconium dimethyl catalyst (Catalyst A) inthe first reactor to produce isotactic polypropylene and[di(p-triethylsilylphenyl)methylene](cyclopentadienyl)(3,8-di-t-butylfluorenyl)hafnium dimethyl catalyst (Catalyst B) in thesecond reactor to produce propylene/hexene copolymer. Propylene,solvent, catalyst A solution and scavenger were fed into the firstreactor. The content of the first reactor flows into the second reactor.Hexene and catalyst B solution were fed into the second reactor. Thecrystallinity of propylene/hexene copolymers was adjusted through lopropylene conversion in the first reactor and amount of hexene fed intothe second reactor. For most samples, the propylene/hexene copolymerswere amorphous. The general procedure described above was followed, andthe detailed reaction condition and polymer properties are listed inTable 3. TABLE 3 Example 3a 3b 3c 3d 3e Reactor 1 Temperature (° C.) 125120 115 125 120 Reactor 2 Temperature (° C.) 125 125 125 125 125Propylene feed rate to reactor 1 28.3 28.3 28.3 28.3 28.3 (g/min) Hexenefeed rate to reactor 2 1 1 1 1 1 (ml/min) Hexane feed rate to reactor 190 90 90 90 90 (ml/min) Catalyst B feed rate to reactor 2 9.42E−079.42E−07 9.42E−07 9.42E−07 9.42E−07 (mole/min) Catalyst A feed rate toreactor 1 3.64E−08 3.64E−08 3.64E−08 4.20E−08 4.20E−08 (mole/min) H2feed rate to reactor 2 (cc/min) 10.0 20.0 30.0 10.0 20.0 Tc (° C.) 70.062.5 Tm (° C.) 132.9 129.2 Tg (° C.) −6.8 −10.6 delta H (J/g) 27.0 17.3Mn (kg/mol) Mw (kg/mol) Mz (kg/mol) g′ @Mz Viscosity @190° C. (cp) 79502970 1420 3940 2140

EXAMPLE 4a-4e

[1322] These examples demonstrated a series dual-reactor continuoussolution process with the use of [di(p-triethylsilylphenyl)methylene](cyclopentadienyl) (3,8-di-t-butylfluorenyl)hafnium dimethyl catalyst(Catalyst B) in the first reactor to produce ethylene/propylenecopolymers and rac-dimethylsilyl bis(2-methyl-4-phenylindenyl)zirconiumdimethyl catalyst (Catalyst A) in the second reactor to produceisotactic polypropylene. Catalyst fed rate to the first reactor wasadjusted to ensure over 50% propylene conversion in the first reactor.At this propylene conversion, the ethylene conversion was about over90%. High conversion of ethylene in the first reactor allowed for a morecrystalline product to be made in the second reactor. Propylene,ethylene, solvent, catalyst A solution and scavenger were fed into thefirst reactor. The content of the first reactor flows into the secondreactor. Catalyst B solution was fed into the second reactor. Thegeneral procedure described above was followed, and the detailedreaction condition and polymer properties are listed in Table 4. TABLE 4Example 4a 4b 4c 4d 4e Reactor 1 Temperature (° C.) 125 125 125 125 125Reactor 2 Temperature (° C.) 110 100 90 110 100 Propylene feed rate toreactor 1 14 14 14 28.3 28.3 (g/min) Ethyelene feed rate to reactor 10.6 0.6 0.6 0.6 0.6 (SLPM) Hexane feed rate to reactor 1 90 90 90 90 90(ml/min) Catalyst B feed rate to reactor 1 1.47E−07 1.47E−07 1.47E−075.89E−07 5.89E−07 (mole/min) Catalyst A feed rate to reactor 2 2.83E−072.83E−07 2.83E−07 1.89E−07 1.89E−07 (mole/min) Tc (° C.) 39.3 49.8 57.362.6 75.8 Tm (° C.) 81.8 91.3 99.7 111.7 122.8 Tg (° C.) −23.7 −26.5−22.7 −12.9 −11.6 delta H (J/g) 17.9 24.7 30.1 17.9 25.1 Mn (kg/mol) Mw(kg/mol) Mz (kg/mol) g′ @Mz Viscosity @190° C. (cp) 2790 3360 2890 2560028200

EXAMPLE 5a-5c

[1323] These examples demonstrate a series dual-reactor continuoussolution process with the use of rac-dimethylsilylbis(2-methyl-4-phenylindenyl)zirconium dimethyl catalyst (Catalyst A) toproduce isotactic polypropylene in the first reactor andpropylene/ethylene copolymer in the second reactor. Propylene, solvent,catalyst A solution and scavenger were fed into the first reactor. Thecontent of the first reactor flows into the second reactor. Ethylene wasfed into the second reactor. The crystallinity of ethylene/propylenecopolymers was adjusted through propylene conversion in the firstreactor and amount of ethylene fed into the second reactor. Sufficientethylene fed rate is required in order to produce amorphousethylene/propylene copolymer in the second reactor. The generalprocedure described above was followed, and the detailed reactioncondition and polymer properties are listed in Table 5. TABLE 5 Example5a 5b 5c Reactor 1 Temperature (° C.) 118 90 90 Reactor 2 Temperature (°C.) 100 90 100 Propylene feed rate to 14 14 14 reactor 1 (g/min)Ethylene feed rate 0.6 0.6 0.6 to reactor 2 (SLPM) Hexane feed rate to90 90 90 reactor 1 (ml/min) Catalyst A feed rate to 6.99E−08 6.99E−086.99E−08 reactor 1 (mole/min) Catalyst A feed rate to 2.10E−07 2.10E−072.10E−07 reactor 2 (mole/min) Tc (° C.) 74.6 52.5 87.4 Tm (° C.) 145.499.1 151.6 Tg (° C.) −19.1 −11.9 −21.4 delta H (J/g) 45.1 42.9 29.0 Mn(kg/mol) Mw (kg/mol) Mz (kg/mol) g′ @Mz Viscosity @190° C. (cp) 455 1240320

EXAMPLE 6a-6c

[1324] These examples demonstrate a series dual-reactor continuousprocess with the use of rac-dimethylsilylbis(2-methyl-4-phenylindenyl)zirconium dimethyl catalyst (Catalyst A) inthe first reactor to produce low molecular weight polyethylene and amixture of rac-dimethylsilyl bis(2-methyl-4-phenylindenyl)zirconiumdimethyl catalyst (Catalyst A) and [di(p-triethylsilylphenyl)methylene](cyclopentadienyl) (3,8-di-t-butylfluorenyl)hafnium dimethyl catalyst(Catalyst B) in the second reactor to produce atactic (aPP) andisotactic polypropylene (iPP) as well as aPP/iPP branch-blocks.Ethylene, solvent, catalyst A solution and scavenger were fed into thefirst reactor. The content of the first reactor flows into the secondreactor. Propylene and catalyst B solution were fed into the secondreactor. The catalyst A fed rate was high enough that over 90% ofethylene were converted in the first reactor. The ratio of catalyst Aand catalyst B was adjusted to control and aPP/iPP ratio in the secondreactor. The general procedure described above was followed, and thedetailed reaction condition and polymer properties are listed in Table6. TABLE 6 Example 6a 6b 6c Reactor 1 Temperature (° C.) 125 120 120Reactor 2 Temperature (° C.) 125 110 100 Ethylene feed rate reactor 1(SLPM) 0.2 0.2 0.2 Propylene feed rate to 14 14 14 reactor 2 (g/min)Hexane fed rate to reactor 1 (ml/min) 90 90 90 Catalyst B feed rate to8.83E−07 8.83E−07 8.83E−07 reactor 2 (mole/min) Catalyst A feed rate to2.10E−07 2.10E−07 2.10E−07 reactor 1 (mole/min) Tc (° C.) 91.2 103.6101.6 Tm (° C.) 128.0 138.1 139.9 Tg (° C.) −13.3 −8.8 −6.1 delta H(J/g) 26.7 59.3 42.6 Mn (kg/mol) Mw (kg/mol) Mz (kg/mol) g′ @ MzViscosity @ 190° C. (cp) 2435 28400 89800

[1325] Adhesive Testing

[1326] A number of hot melt adhesives were prepared by using the neatpolymers or blending the neat polymer, functionalized additives,tackifier, wax, antioxidant, and other ingredients under low shearmixing at elevated temperatures to form fluid melt. The mixingtemperature varied from about 130 to about 190° C. Adhesive testspecimens were created by bonding the substrates together with a dot ofmolten adhesive and compressing the bond with a 500-gram weight untilcooled to room temperature. The dot size was controlled by the adhesivevolume such that in most cases the compressed disk which formed gave auniform circle just inside the dimensions of the substrate.

[1327] Once a construct has been produced it can be subjected to variousinsults in order to assess the effectiveness of the bond. Once a bondfails to a paper substrate a simple way to quantify the effectiveness isto estimate the area of the adhesive dot that retained paper fibers asthe construct failed along the bond line. This estimate was calledpercent substrate fiber tear. An example of good fiber, afterconditioning a sample for 15 hours at −12 ° C. and attempting to destroythe bond, would be an estimate of 80-100% substrate fiber tear. It islikely that 0% substrate fiber tear under those conditions would signala loss of adhesion.

[1328] Substrate fiber tear: The specimens were prepared using the sameprocedure as that described above. For low temperature fiber tear test,the bond specimens were placed in a freezer or refrigerator to obtainthe desired test temperature. For substrate fiber tear at roomtemperature, the specimens were aged at ambient conditions. The bondswere separated by hand and a determination made as to the type offailure observed. The amount of substrate fiber tear was expressed inpercentage.

[1329] Dot T-Peel was determined according to ASTM D 1876, except thatthe specimen was produced by combining two 1 inch by 3 inch (2.54cm×7.62 cm) substrate cut outs with a dot of adhesive with a volumethat, when compressed under a 500-gram weight occupied about 1 squareinch of area (1 inch=2.54 cm). Once made all the specimens were pulledapart in side by side testing at a rate of 2 inches per minute by amachine that records the destructive force of the insult being applied.The maximum force achieved for each sample tested was recorded andaveraged, thus producing the average maximum force which is reported asthe Dot T-Peel.

[1330] Peel Strength (modified ASTM D1 876): Substrates (1×3 inches(25×76 mm)) were heat sealed with adhesive film (5 mils (130 μm)thickness) at 135° C. for 1 to 2 seconds and 40 psi (0.28 MPa) pressure.Bond specimens were peeled back in a tensile tester at a constantcrosshead speed of 2 in/min (51 mm/min). The average force required topeel the bond (5 specimens) apart is recorded.

[1331] Set time is defined as the time it takes for a compressedadhesive substrate construct to fasten together enough to give substratefiber tear when pulled apart, and thus the bond is sufficiently strongto remove the compression. The bond will likely still strengthen uponfurther cooling, however, it no longer requires compression. These settimes were measured by placing a molten dot of adhesive on to a filefolder substrate taped to a flat table. A file folder tab (1 inch by 3inch (2.5 cm×7.6 cm)) was placed upon the dot 3 seconds later andcompressed with a 500 gram weight. The weight was allowed to sit forabout 0.5 to about 10 seconds. The construct thus formed was pulledapart to check for a bonding level good enough to produce substratefiber tear. The set time was recorded as the minimum time required forthis good bonding to occur. Standards were used to calibrate theprocess.

[1332] SAFT (modified D4498) measures the ability of a bond to withstandan elevated temperature rising at 10° F. (5.5 ° C.)/15 min., under aconstant force that pulls the bond in the shear mode. Bonds were formedin the manner described above on Kraft paper (1 inch by 3 inch (2.5cm×7.6 cm)). The test specimens were suspended vertically in an oven atroom temperature with a 500-gram load attached to the bottom. Thetemperatures at which the weight fell was recorded (when the occasionalsample reached temperatures above the oven capacity >265° F. (129° C.)it was terminated and averaged in with the other samples at terminationtemperature).

[1333] Shore A hardness was measured according to ASTM D 2240. Anair-cooled dot of adhesive was subjected to the needle and thedeflection was recorded from the scale.

EXAMPLES

[1334] The following materials were used in examples of adhesiveperformance testing. Trade name Description Source Tackifiers Escorez ®5637 Hydrogenated aromatic modified resin ExxonMobil Chemical producedfrom dicyclopentadiene Company feedstock, exhibiting a ring and ballsoftening point of 130° C. Escorez ® 5690 Hydrogenated aromatic modifiedresin ExxonMobil Chemical produced from dicyclopentadiene Companyfeedstock, exhibiting a ring and ball softening point of 90° C.Escorez ® 2203 A low aromatic modified hydrocarbon ExxonMobil Chemicalresin having a narrow molecular weight Company distribution producedfrom a feed of C5, C6 and C9 olefins and di-olefins, having a ring andball softening point of about 95° C. Oils Kadol oil Refined whitemineral oil Witco Polymers/Adhesives Rextac RT 2715 Propylene/butenecopolymer, Ziegler Huntsman, Odessa Texas Natta APAO Henkel hot meltCommercial bend of EVA, tackifier, and Henkel Corporation 80-8368 waxAdvantra 9250 Commercial blend of ethylene/octene Fuller metallocenepolymers, tackifiers, and wax Tite bond wood Water based adhesive HomeDepot, Houston, glue Texas Waxes/Funtionalized additives AC395A Oxidizedpolyethylene with density of Honeywell, Morristown, 1.0 g/cc, viscosityof 2500 cP at 150° C. New Jersey and acid number of 45˜50 mg/KOH/g. AC596P Polypropylene-maleic anhydride Honeywell, Morristown, copolymerwith viscosity 189 cps at 190° C. New Jersey and Saponification numberof 40 mg/KOH/g AC 597 Polypropylene-maleic anhydride Honeywell,Morristown, copolymer with viscosity 374 cps at 190° C. New Jersey andSaponification number of 80 mg/KOH/g AC X1325 Polypropylene-maleicanhydride Honeywell, Morristown, copolymer with viscosity 1490 cps atNew Jersey 190° C. and acid number of 16 mg/KOH/g A-C-1302PEthylene-maleic anhydride copolymer Honeywell, Morristown, withviscosity of 248 cP at 190° C. and New Jersey Saponification number of 5mg KOH/g PP-grafted maleic PP-grafted maleic anhydride withSigma-Aldrich, Product anhydride averaged Mw of ˜9,100, Mn of ˜3,900number: 42784-5 by GPC, viscosity of 400 cP at 190° C., acid number of47 mg KOH/g, softening point of 157° C. (ring and ball) and density of0.934 g/ml MAPP 40 Maleated polypropylene with acid value Chusei,Pasadena, Texas of 45˜50, viscosity at 190° C. of 400-425 cp, and softpoint of 143˜155° C. Paraflint H-1 Fisher-Tropsch wax, 10 mPa @ 250° F.Moore and Munger C80 wax Fischer Tropsch fractionated wax Moore andMunger Antioxidants and other additives Irganox 1010 Phenolicantioxidant Ciba-Geigy Test surfaces (substrates) Paperboard 84B Genericposter board clay coated Huckster Packaging and newsprint Supply,Houston, Texas Paperboard 84C Generic corrugated cardboard 200# HucksterPackaging and stock Supply, Houston, Texas Inland paper High Performancebox board Inland Paper Board and board Packaging Company of Rome Blackwhite fabric Printed stretch 100% Cotton with a High Fashion Fabrics,Thread Count of 17 by 13 per square Houston, Texas cm, a more looselywoven fabric Formica Tabs were made from standard sheet Lowe's Hardware,Formica Houston, Texas Blue fabric Tabs were made from Blue Stock HighFashion Fabrics, 038C0TP 100% Cotton, Thread Count Houston, Texas. 21 by45 per square cm with a weight of 0.022 grams per square cm, a tightlywoven cotton fabric Seton catalog Book paper bound by a hot melt processSeton Catalog paper as determined from examination PET Polyester (PET),Commonly called Several Sources Mylar Kraft paper Kraft paper GeorgiaPacific, Atlanta, Georgia File folder File folder is a typical manilaletter size Smead Paper, stock (⅓ cut) stock having a minimum of number153L, UPC 10% post consumer recycle paper number 10330 content PP castfilm Polypropylene cast film PP4772. ExxonMobil Chemical Company

[1335] As examples, the adhesive formulation and adhesive performancefor selected polymers produced using current invention are listed in thefollowing tables. TABLE 7 Adhesion tests of substrate fiber tear (Dot-Tpeel) HMA1 HMA2 HMA3 HMA4 HMA5 HMA6 HMA7 Polymer 1b 1b 1a 1a 2a 2a 2aPolymer (wt. %) 100   87 100 89.5 89.5 Irganox 1010  0 0 0.5 0.5 (wt. %)MAPP 40 (wt. %)  0 2.5 AC1302P (wt. %) 10 C80 wax (wt. %)  0 7 5 Escorez5690  0 3.5 (wt. %) Escorez 2203 5 (wt. %) Shore A hardness  95 94 94 9396 Set time (sec)    6+ 3.5˜4   3.5 3.5 3.5 Viscosity @ 177° C. 1490(cps) Viscosity @ 190° C. 1790 2190 (cps) Fiber tear at low temperaturesPaperboard 84 C  11 97 overnight at 2° C. (%) Paperboard 84 C 97 48 97overnight at −10° C. (%) Paperboard 84 C 98 93 95 overnight at −30° C.(%) Inland Paper Board  1 84 overnight at 2° C. (%) Inland paper board0, af 90 overnight at 6° C. (%) Inland Paper Board 0, af, ab 45 49 19 5overnight at −10° C. (%) Inland Paper Board 72 0, af, ab 0, af, abovernight at −30° C. (%) Fiber tear at ambient condition Inland paperboard 0, af, ab 97 0, af 0, af 0, af Paperboard 84 C  55 97 6 9 0, af

[1336] TABLE 8 Adhesion tests of substrate fiber tear (Dot-T peel) HMA8HMA9 HMA10 HMA11 HMA12 HMA13 HMA14 Polymer 5a 5a 5a 5b 5b 5c 5c Polymer(wt. %) 100 89.5 89.5 100 87 100 87 Irganox 1010 0.5 0.5 (wt. %) MAPP 40(wt. %) 2.5 2.5 AC1302P (wt. %) 10 C80 wax (wt. %) 5 7 7 Escorez 56903.5 3.5 (wt. %) Escorez 2203 5 (wt. %) Shore A hardness 97 95 95  94 92 93 87 Set time (sec) 5 2 2     6+ 3    6+ 2.5 Viscosity @ 482.5 5851610 1050 433 315 177° C. (cps) Viscosity @ 351 448 190° C. (cps) Fibertear at low temperatures Paperboard 84 C 10 0, af, ab 2 overnight at−10° C. (%) Paperboard 84 C 69 5 75 overnight at −30° C. (%) InlandPaper Board   2 74 0, af, ab 74 overnight at 0° C. (%) Inland PaperBoard 0, af, ab 0, af, ab 0, af, ab  10 74 0, af, ab 58 overnight at−10° C. (%) Inland Paper Board 0, af, ab 0, af, ab 0, af, ab   5 55 0,af, ab 0, af, ab overnight at −30° C. (%) Fiber tear at ambientcondition Inland paper board 0, af 0, af 0, af   3 10 0, af 90Paperboard 84 C 0, af 0, af 0, af

[1337] TABLE 9 Adhesion tests of substrate fiber tear (Dot-T peel) HMA15HMA16 HMA17 HMA18 HMA19 HMA20 Polymer 2c 2c 2c 2d 2d 2d Polymer (wt. %)100 89.5 87 100 89.5 87 MAPP 40 (wt. %) 2.5 2.5 C80 wax (wt. %) 7 7 7 7Escorez 5690 (wt. %) 3.5 3.5 3.5 3.5 Shore A hardness  59 60 58 81 82 87Set time (sec)    6+ 3˜3.5 3.5˜4 6 3 2.5 Low temperature fiber tearPaperboard 84 C overnight  94 99 100 88 30 98 at 6° C. (%) Inland paperboard  95 82 100 90 49 100 overnight at 6° C. (%) Inland Paper Board  9093 99 73 47 100 overnight at −5° C. (%) Inland Paper Board  66 30 81 3527 93 overnight at −25˜−30° C. (%) Fiber tear at ambient conditionInland paper board  97 99 100 70 69 100 Paperboard 84 C 100 99 100 65 25100

[1338] TABLE 10 Dot T-peel strength to Mylar and failure types HMA21HMA22 HMA23 HMA24 HMA25 HMA26 Polymer 2c 2d 6a 1a 4c 3d Polymer (wt. %)100 100 100 100 100 100 Shore A hardness 51 81 38 29 79 35 Dot T-Peelfailure CF, AF, AF, SS AF, CF CF AF CF type SS Peel force to Mylar 1.9540.017 2.549 2.819 0.0083 3.84 (aged for three days) (lbf)

[1339] TABLE 11 Dot T-peel strength to Mylar and failure types HMA27HMA28 HMA29 HMA30 HMA31 HMA32 Polymer 2c 2d 6a 1a 4c 3d Polymer (wt. %)70 70 70 70 70 70 Escorez 5637 30 30 30 30 30 30 (wt. %) Viscosity @1032 1032 2770 1830 2305 3230 190° C. (cp) Shore A hardness 42 71 56 3173 33 Dot T-Peel failure CF AF, CF CF, AF CF CF, AF CF type Peel forceto 19.47 19.71 13.31 17.82 8.506 21.98 Mylar (aged for three days) (lbf)

[1340] While the invention has been described with reference to anexemplary embodiment, it will be understood by those skilled in the artthat various changes may be made and equivalents may be substituted forelements thereof without departing from the scope of the invention. Inaddition, many modifications may be made to adapt a particular situationor material to the teachings of the invention without departing from theessential scope thereof. Therefore, it is intended that the inventionnot be limited to the particular embodiment disclosed as the best modecontemplated for carrying out this invention, but that the inventionwill include all embodiments falling within the scope of the appendedclaims.

1. A continuous process to produce a branched olefin polymer comprising: 1) selecting a first catalyst component capable of producing a polymer having an Mw of 100,000 or less and a crystallinity of 20% or less under selected polymerization conditions; 2) selecting a second catalyst component capable of producing polymer having an Mw of 100,000 or less and a crystallinity of 20% or more at the selected polymerization conditions; 3) contacting a catalyst component, one or more activators and one or more C2 to C40 olefins in a first reaction zone, at a temperature of greater than 70° C., and at a residence time of 120 minutes or less; and 4) transfering the contents of the first reaction zone to a second reaction zone and further contacting the contents with a catalyst component, an activator and or one or more C2 to C40 olefins, at a temperature of greater than 70° C., and at a residence time of 120 minutes or less; and 5) optionally, transferring the contents of the second reaction zone to a third reaction zone and further contacting the contents with a catalyst compound, an activator and or one or more C2 to C40 olefins, at a temperature of greater than 70° C., and at a residence time of 120 minutes or less; and 6) recovering a branched olefin polymer comprising at least 50 mole% of one or more C3 to C40 olefins, where the first catalyst component is present in at least one reaction zone and the second catalyst component is present in a second reaction zone and where in at least one reaction zone the C2 to C40 olefin is a C3 to C40 alpha-olefin.
 2. The process of claim 1 wherein the olefin polymer comprises from 50 to 100 mole % of propylene.
 3. The process of claim 1 wherein the olefin polymer is homopolypropylene.
 4. The process of claim 1 wherein the first catalyst component comprises a non-sterospecific metallocene catalyst compound.
 5. The process of claim 1 wherein the second catalyst component comprises a sterospecific metallocene catalyst compound.
 6. The process of claim 1 where propylene is present in the first reaction zone.
 7. The process of claim 1 where propylene is present in the second reaction zone.
 8. The process of claim 1 where propylene is present in a third reaction zone.
 9. The process of claim 1 where ethylene is present in the first reaction zone.
 10. The process of claim 1 where ethylene is present in the second reaction zone.
 11. The process of claim 1 where ethylene is present in a third reaction zone.
 12. The process of claim 1 wherein propylene and ethylene are present in the first reaction zone.
 13. The process of claim 1 wherein propylene and ethylene are present in the second reaction zone.
 14. The process of claim 1 where propylene is present in the first reaction zone at 100 weight %, based upon the weight of the monomers present.
 15. The process of claim 1 where propylene is present in the second reaction zone at 100 weight %, based upon the weight of the monomers present.
 16. The process of claim 1 where propylene is present in a third reaction zone at 100 weight %, based upon the weight of the monomers present.
 17. The process of claim 1 where propylene is present in the first reaction zone at 100 weight %, (based upon the weight of the monomers present in the first reaction zone) and ethylene is present in the second reaction zone at up to 50 weight %, (based upon the weight of the monomers present in the second reaction zone).
 18. The process of claim 1 where propylene and ethylene are present in the first reaction zone and no ethylene, other than residual ethylene monomer present in the contents of the first reaction zone, is introduced into the second reaction zone.
 19. The process of claim 1 where ethylene is intermittently introduced into one or more reaction zones.
 20. The process of claim 1 where ethylene is present in a reaction zone at less than 10 weight %, based upon the weight of the monomers in the reaction zone.
 21. The process of claim 1 wherein propylene is present in the first reaction zone, ethylene is present in the second reaction zone, the second catalyst component is present in the first reaction zone, and the first catalyst component is present in the second reaction zone.
 22. The process of claim 1 wherein propylene is present in the first reaction zone, propylene and ethylene are present in the second reaction zone, the second catalyst component is present in the first reaction zone, and the first catalyst component is present in the second reaction zone.
 23. The process of claim 1 wherein propylene and ethylene are present in the first reaction zone, propylene is present in the second reaction zone, the first catalyst component is present in the first reaction zone, and the second catalyst component is present in the second reaction zone.
 24. The process of claim 1 wherein propylene is present in the first reaction zone, propylene and ethylene are present in the second reaction zone, the second catalyst component is present in the first reaction zone, and the second catalyst component is present in the second reaction zone.
 25. The process of claim 1 wherein ethylene is present in the first reaction zone, propylene is present in the second reaction zone, propylene is present in the third reaction zone, the first catalyst component is present in the second reaction zone, and the second catalyst component is present in a third reaction zone, and the catalyst compound present in the first reaction zone is capable of producing polymer having an Mw of 20,000 or less and a crystallinity of 10% or less at the selected polymerization conditions.
 26. The process of claim 1 wherein 1) the first catalyst component comprises a non-sterospecific metallocene catalyst compound; 2) the second catalyst component comprises a sterospecific metallocene catalyst compound; 3) the first reaction zone is a reactor comprising solvent, monomer, catalyst compound and activator at a temperature of greater than 70° C.; and 4) The second reaction zone is a reactor comprising solvent, monomer, catalyst compound and activator at a temperature of greater than 70° C.
 27. The process of claim 1 where the catalyst compound capable of producing polymer having an Mw of 100,000 or less and a crystallinity of 10% or less is selected from the group consising of: rac-dimethylsilylbis(4,7-dimethylindenyl) hafnium dichloride, rac-dimethylsilylbis(4,7-dimethylindenyl)hafnium dimethyl, rac-dimethylsilylbis(4,7-dimethylindenyl)zirconium dichloride, rac-dimethylsilylbis(4,7-dimethylindenyl)zirconium dimethyl, rac-dimethylsilylbis(indenyl)hafnium dichloride, rac-dimethylsilylbis(indenyl)hafnium dimethyl, rac-dimethylsilylbis(indenyl)zirconium dichloride, rac-dimethylsilylbis(indenyl)zirconium dimethyl, rac-dimethylsilylbis(tetrahydroindenyl)hafnium dichloride, rac-dimethylsilylbis(tetrahydroindenyl)hafnium dimethyl, rac-dimethylsilylbis(tetrahydroindenyl)zirconium dichloride, rac-dimethylsilylbis(tetrahydroindenyl)zirconium dimethyl, rac-diphenylsilylbis(4,7-dimethylindenyl)hafnium dichloride, rac-diphenylsilylbis(4,7-dimethylindenyl)hafnium dimethyl, rac-diphenylsilylbis(4,7-dimethylindenyl)zirconium dichloride, rac-diphenylsilylbis(4,7-dimethylindenyl)zirconium dimethyl, rac-diphenylsilylbis(indenyl)hafnium dichloride, rac-diphenylsilylbis(indenyl)hafnium dimethyl, rac-diphenylsilylbis(indenyl)zirconium dichloride, rac-diphenylsilylbis(indenyl) zirconium dimethyl, rac-diphenylsilylbis(tetrahydroindenyl)hafnium dichloride, rac-diphenylsilylbis(tetrahydroindenyl)hafnium dimethyl, rac-diphenylsilylbis(tetrahydroindenyl)zirconium dichloride, rac-diphenylsilylbis(tetrahydroindenyl)zirconium dimethyl, rac-methylphenylsilylbis(4,7-dimethylindenyl)hafnium dichloride, rac-methylphenylsilylbis(4,7-dimethylindenyl)hafnium dimethyl, rac-methylphenylsilylbis(4,7-dimethylindenyl)zirconium dichloride, rac-methylphenylsilylbis(4,7-dimethylindenyl)zirconium dimethyl, rac-methylphenylsilylbis(indenyl)hafnium dichloride, rac-methylphenylsilylbis(indenyl)hafnium dimethyl, rac-methylphenylsilylbis(indenyl)zirconium dichloride, rac-methylphenylsilylbis(indenyl)zirconium dimethyl, rac-methylphenylsilylbis(tetrahydroindenyl)hafnium dichloride, rac-methylphenylsilylbis(tetrahydroindenyl)hafnium dimethyl, rac-methylphenylsilylbis(tetrahydroindenyl)zirconium dichloride, rac-methylphenylsilylbis(tetrahydroindenyl)zirconium dimethyl, rac-ethylenebis(4,7-dimethylindenyl)hafnium dichloride, rac-ethylenebis(4,7-dimethylindenyl)hafnium dimethyl, rac-ethylenebis(4,7-dimethylindenyl)zirconium dichloride, rac-ethylenebis(4,7-dimethylindenyl)zirconium dimethyl, rac-ethylenebis(indenyl)hafnium dichloride, rac-ethylenebis(indenyl)hafnium dimethyl, rac-ethylenebis(indenyl)zirconium dichloride, rac-ethylenebis(indenyl)zirconium dimethyl, rac-ethylenebis(tetrahydroindenyl)hafnium dichloride, rac-ethylenebis(tetrahydroindenyl)hafnium dimethyl, rac-ethylenebis(tetrahydroindenyl)zirconium dichloride, and rac-ethylenebis(tetrahydroindenyl)zirconium dimethyl.
 28. The process of claim 1 wherein the first catalyst component comprises one or more of dimethylsilyl(tetramethylcyclopentadienyl)(cyclododecylamido)titanium dichloride, dimethylsilyl(tetramethylcyclopentadienyl)(cyclohexyl-amido)titanium dichloride, dimethylsilyl(tetramethylcyclopentadienyl)(1-adamantylamido)titanium dichloride, dimethylsilyl(tetramethylcyclopentadienyl)(t-butylamido)titanium dichloride, dimethylsilyl(tetramethylcyclopentadienyl)(s-butylamido)titanium dichloride, dimethylsilyl(tetramethylcyclopentadienyl)(n-butylamido)titanium dichloride, dimethylsilyl(tetramethylcyclopentadienyl)(exo-2-norbornylamido)titanium dichloride, diethylsilyl(tetramethylcyclopentadienyl)(cyclododecyl-amido)titanium dichloride, diethylsilyl(tetramethylcyclopentadienyl)(exo-2-norbornylamido)titanium dichloride, diethylsilyl(tetramethylcyclopentadienyl)(cyclohexyl-amido)titanium dichloride, diethylsilyl(tetramethylcyclopentadienyl)(1-adamantylamido)titanium dichloride, methylene(tetramethylcyclopentadienyl)(cyclododecyl-amido)titanium dichloride, methylene(tetramethylcyclopentadienyl)(exo-2-norbornylamido)titanium dichloride, methylene(tetramethylcyclopentadienyl)(cyclohexylamido)titanium dichloride, methylene(tetramethylcyclopentadienyl)(1-adamantylamido)titanium dichloride, dimethylsilyl(tetramethylcyclopentadienyl)(cyclododecylamido)titanium dimethyl, dimethylsilyl(tetramethylcyclopentadienyl)(exo-2-norbornylamido)titanium dimethyl, dimethylsilyl(tetramethylcyclopentadienyl)(cyclohexyl-amido)titanium dimethyl, dimethylsilyl(tetramethylcyclopentadienyl)(1-adamantylamido)titanium dimethyl, dimethylsilyl(2,5-dimethylcyclopentadienyl)(cyclododecylamido)titanium dichloride, dimethylsilyl(2,5-dimethylcyclopentadienyl)(exo-2-norbornylamido)titanium dichloride, dimethylsilyl(2,5-dimethylcyclopentadienyl)(cyclohexylamido)titanium dichloride, dimethylsilyl(2,5-dimethylcyclopentadienyl)(1-adamantylamido)titanium dichloride, dimethylsilyl(3,4-dimethylcyclopentadienyl)(cyclododecylamido)titanium dichloride, dimethylsilyl(3,4-dimethylcyclopentadienyl)(exo-2-norbornylamido)titanium dichloride, dimethylsilyl(3,4-dimethylcyclopentadienyl)(cyclohexylamido)titanium dichloride, dimethylsilyl(3,4-dimethylcyclopentadienyl)(1-adamantylamido)titanium dichloride, dimethylsilyl(2-ethyl-5-methylcyclopentadienyl)(cyclododecylamido)titanium dichloride, dimethylsilyl(2-ethyl-5-methylcyclopentadienyl)(exo-2-norbornylamido)titanium dichloride, dimethylsilyl(2-ethyl-5-methylcyclopentadienyl)(cyclohexylamido) titanium dichloride, dimethylsilyl(2-ethyl-5-methylcyclopentadienyl)(1-adamantylamido)titanium dichloride, dimethylsilyl(3-ethyl-4-methylcyclopentadienyl)(cyclododecylamido)titanium dichloride, dimethylsilyl(3-ethyl-4-methylcyclopentadienyl)(exo-2-norbornylamido)titanium dichloride, dimethylsilyl(3-ethyl-4-methylcyclopentadienyl)(cyclohexylamido)titanium dichloride, dimethylsilyl(3-ethyl-4-methylcyclopentadienyl)(1-adamantylamido)titanium dichloride, dimethylsilyl(2-ethyl-3-hexyl-5-methyl-4-octylcyclopentadienyl)(cyclododecylamido)titanium dichloride, dimethylsilyl(2-ethyl-3-hexyl-5-methyl-4-octylcyclopentadienyl)(exo-2-norbornylamido)titanium dichloride, dimethylsilyl(2-ethyl-3-hexyl-5-methyl-4-octylcyclopentadienyl)(cyclohexylamido)titanium dichloride, dimethylsilyl(2-ethyl-3-hexyl-5-methyl-4-octylcyclopentadienyl)(1-adamantylamido)titanium dichloride, dimethylsilyl(2-tetrahydroindenyl)(cyclododecylamido)titanium dichloride, dimethylsilyl(2-tetrahydroindenyl)(cyclohexylamido)titanium dichloride, dimethylsilyl(2-tetrahydroindenyl)(1-adamantylamido)titanium dichloride, dimethylsilyl(2-tetrahydroindenyl)(exo-2-norbornylamido)titanium dichloride, dimethylsilyl(tetramethylcyclopentadienyl)(cyclododecylamido)titanium dimethyl, dimethylsilyl(tetramethylcyclopentadienyl)(cyclohexyl-amido)titanium dimethyl, dimethylsilyl(tetramethylcyclopentadienyl)(1-adamantylamido)titanium dimethyl, dimethylsilyl(tetramethylcyclopentadienyl)(t-butylamido)titanium dimethyl, dimethylsilyl(tetramethylcyclopentadienyl)(s-butylamido)titanium dimethyl, dimethylsilyl(tetramethylcyclopentadienyl)(n-butylamido)titanium dimethyl, dimethylsilyl(tetramethylcyclopentadienyl)(exo-2-norbornylamido)titanium dimethyl, diethylsilyl(tetramethylcyclopentadienyl)(cyclododecyl-amido)titanium dimethyl, diethylsilyl(tetramethylcyclopentadienyl)(exo-2-norbornylamido)titanium dimethyl, diethylsilyl(tetramethylcyclopentadienyl)(cyclohexyl-amido)titanium dimethyl, diethylsilyl(tetramethylcyclopentadienyl)(1-adamantylamido)titanium dimethyl, methylene(tetramethylcyclopentadienyl)(cyclododecyl-amido)titanium dimethyl, methylene(tetramethylcyclopentadienyl)(exo-2-norbornylamido)titanium dimethyl, methylene(tetramethylcyclopentadienyl)(cyclohexylamido)titanium dimethyl, methylene(tetramethylcyclopentadienyl)(1-adamantylamido)titanium dimethyl, dimethylsilyl(tetramethylcyclopentadienyl)(cyclododecylamido)titanium dimethyl, dimethylsilyl(tetramethylcyclopentadienyl)(exo-2-norbornylamido)titanium dimethyl, dimethylsilyl(tetramethylcyclopentadienyl)(cyclohexyl-amido)titanium dimethyl, dimethylsilyl(tetramethylcyclopentadienyl)(1-adamantylamido)titanium dimethyl, dimethylsilyl(2,5-dimethylcyclopentadienyl)(cyclododecylamido)titanium dimethyl, dimethylsilyl(2,5-dimethylcyclopentadienyl)(exo-2-norbornylamido)titanium dimethyl, dimethylsilyl(2,5-dimethylcyclopentadienyl)(cyclohexylamido)titanium dimethyl, dimethylsilyl(2,5-dimethylcyclopentadienyl)(1-adamantylamido)titanium dimethyl, dimethylsilyl(3,4-dimethylcyclopentadienyl)(cyclododecylamido)titanium dimethyl, dimethylsilyl(3,4-dimethylcyclopentadienyl)(exo-2-norbornylamido)titanium dimethyl, dimethylsilyl(3,4-dimethylcyclopentadienyl)(cyclohexylamido)titanium dimethyl, dimethylsilyl(3,4-dimethylcyclopentadienyl)(1-adamantylamido)titanium dimethyl, dimethylsilyl(2-ethyl-5-methylcyclopentadienyl)(cyclododecylamido)titanium dimethyl, dimethylsilyl(2-ethyl-5-methylcyclopentadienyl)(exo-2-norbornylamido)titanium dimethyl, dimethylsilyl(2-ethyl-5-methylcyclopentadienyl)(cyclohexylamido) titanium dimethyl, dimethylsilyl(2-ethyl-5-methylcyclopentadienyl)(1-adamantylamido)titanium dimethyl, dimethylsilyl(3-ethyl-4-methylcyclopentadienyl)(cyclododecylamido)titanium dimethyl, dimethylsilyl(3-ethyl-4-methylcyclopentadienyl)(exo-2-norbornylamido)titanium dimethyl, dimethylsilyl(3-ethyl-4-methylcyclopentadienyl)(cyclohexylamido)titanium dimethyl, dimethylsilyl(3-ethyl-4-methylcyclopentadienyl)(1-adamantylamido)titanium dimethyl, dimethylsilyl(2-ethyl-3-hexyl-5-methyl-4-octylcyclopentadienyl)(cyclododecylamido)titanium dimethyl, dimethylsilyl(2-ethyl-3-hexyl-5-methyl-4-octylcyclopentadienyl)(exo-2-norbornylamido)titanium dimethyl, dimethylsilyl(2-ethyl-3-hexyl-5-methyl-4-octylcyclopentadienyl)(cyclohexylamido) titanium dimethyl, dimethylsilyl(2-ethyl-3-hexyl-5-methyl-4-octylcyclopentadienyl)(1-adamantylamido)titanium dimethyl, dimethylsilyl(2-tetrahydroindenyl)(cyclododecylamido)titanium dimethyl, dimethylsilyl(2-tetrahydroindenyl)(cyclohexylamido)titanium dimethyl, dimethylsilyl(2-tetrahydroindenyl)(1-adamantylamido)titanium dimethyl, and dimethylsilyl(2-tetrahydroindenyl)(exo-2-norbornylamido)titanium dimethyl.
 29. The process of claim 1 wherein the second catalyst component comprises one or more of the racemic versions of: dimethylsilyl (2-methyl-4-phenylindenyl)zirconium dichloride, dimethylsilyl (2-methyl-4-phenylindenyl)zirconium dimethyl, dimethylsilyl (2-methyl-4-phenylindenyl)hafnium dichloride, dimethylsilyl (2-methyl-4-phenylindenyl)hafnium dimethyl, dimethylsilyl bis(indenyl)hafnium dimethyl, dimethylsilyl bis(indenyl)hafnium dichloride, dimethylsilyl bis(indenyl)zirconium dimethyl, dimethylsilyl bis(indenyl)zirconium dichloride, the racemic isomers of: dimethylsilanediylbis(2-methyl)metal dichloride; dimethylsilanediylbis(indenyl)metal dichloride; dimethylsilanediylbis(indenyl)metal dimethyl; dimethylsilanediylbis(tetrahydroindenyl)metal dichloride; dimethylsilanediylbis(tetrahydroindenyl)metal dimethyl; dimethylsilanediylbis(indenyl)metal diethyl; and dibenzylsilanediylbis(indenyl)metal dimethyl; wherein the metal can be chosen from Zr, Hf, or Ti.
 30. The process of claim 1 wherein the first catalyst component comprises 1,1′-bis(4-triethylsilylphenyl)methylene-(cyclopentadienyl)(2,7-di-tertiary-butyl-9-fluorenyl)hafnium dimethyl and or 1,1′-bis(4-triethylsilylphenyl)methylene-(cyclopentadienyl)(3,8-di-tertiary-butyl-fluorenyl)hafnium dimethyl.
 31. The process of claim 1 wherein the second catalyst component comprises dimethylsilyl bis(2-methyl-5-phenylindenyl)zirconium dicmethyl and or dimethylsilyl bis(2-methyl-4-phenylindenyl)zirconium dicmethyl.
 32. The process of claim 1 wherein the activator comprises dimethylaniliniumtetrakis(pentafluorophenyl)borate and or trityl tetrakis(pentafluorophenyl)borate.
 33. The process of claim 1 wherein the activator comprises an alumoxane.
 34. The process of claim 1 wherein the activator comprises an ionizing compound.
 35. The process of claim 1 wherein the activator comprises a non-coordinating anion.
 36. The process of claim 1 wherein the activator comprises one or more of methylalumoxane, trimethylammonium tetraphenylborate, triethylammonium tetraphenylborate, tripropylammonium tetraphenylborate, tri(n-butyl)ammonium tetraphenylborate, tri(t-butyl)ammonium tetraphenylborate, N,N-dimethylanilinium tetraphenylborate, N,N-diethylanilinium tetraphenylborate, N,N-dimethyl-(2,4,6-trimethylanilinium)tetraphenylborate, trimethylammonium tetrakis(pentafluorophenyl)borate, triethylammonium tetrakis(pentafluorophenyl)borate, tripropylammonium tetrakis(pentafluorophenyl)borate, tri(n-butyl)ammonium tetrakis(pentafluorophenyl)borate, tri(sec-butyl)ammonium tetrakis(pentafluorophenyl)borate, N,N-dimethylanilinium tetrakis(pentafluorophenyl)borate, N,N-diethylanilinium tetrakis(pentafluorophenyl)borate, N,N-dimethyl-(2,4,6-trimethylanilinium)tetrakis(pentafluorophenyl)borate, trimethylammonium tetrakis-(2,3,4,6-tetrafluorophenylborate, triethylammonium tetrakis-(2,3,4,6-tetrafluorophenyl)borate, tripropylammonium tetrakis-(2,3,4,6-tetrafluorophenyl)borate, tri(n-butyl)ammonium tetrakis-(2,3,4,6-tetrafluoro-phenyl)borate, dimethyl(t-butyl)ammonium tetrakis-(2,3,4,6-tetrafluorophenyl)borate, N,N-dimethylanilinium tetrakis-(2,3,4,6-tetrafluorophenyl)borate, N,N-diethylanilinium tetrakis-(2,3,4,6-tetrafluorophenyl)borate, and N,N-dimethyl-(2,4,6-trimethylanilinium)tetrakis-(2,3,4,6-tetrafluorophenyl)borate; di-(i-propyl)ammonium tetrakis(pentafluorophenyl)borate; dicyclohexylammonium tetrakis(pentafluorophenyl)borate; triphenylphosphonium tetrakis(pentafluorophenyl)borate; tri(o-tolyl)phosphonium tetrakis(pentafluorophenyl)borate; and tri(2,6-dimethylphenyl)phosphonium tetrakis(pentafluorophenyl)borate.
 37. The process of claim 1 wherein the first catalyst component is capable of polymerizing macromonomers having reactive termini; and the second component is capable of producing macromonomers having reactive termini.
 38. The process of claim 1 wherein one or more reaction zones further comprise diolefin.
 39. The process of claim 1 wherein one or more reaction zones further comprise one or more C4 to C40 dienes.
 40. The process of claim 1 wherein one or more reaction zones further comprise one or more dienes selected from the group consisting of 1,6-heptadiene, 1,7-octadiene, 1,8-nonadiene, 1,9-decadiene, 1,10-undecadiene, 1,11-dodecadiene, 1,12-tridecadiene, 1,13-tetradecadiene, cyclopentadiene, vinylnorbornene, norbornadiene, ethylidene norbornene, divinylbenzene, dicyclopentadiene, polybutadienes having an Mw less than 1000 g/mol, or combinations thereof.
 41. The process of claim 1 wherein at least one reaction zone is a gas phase reactor.
 42. The process of claim 1 wherein at least one reaction zone is a solution phase reactor.
 43. The process of claim 1 wherein at least one reaction zone is a slurry phase reactor.
 44. The process of claim 1 wherein all of the reaction zones are a solution phase reactor.
 45. The process of claim 1 wherein the first catalyst component, the second catalyst component and the activator comprise one or more of the following combinations (where Me equals methyl, Ph equals phenyl, Et equals ethyl, Cp equals cyclopentadienyl, 3,6-di-t-BuFlu equals 3,8-di-tert-butylfluorenyl, 2-Me-4-PhInd equals 2-methyl-4-phenylindenyl, 2-MeInd means 2-methylindenyl, c-C₁₂H₂₃ equals cyclododecyl, Me₄C₅-tetramethylcyclopentadienyl, H₄Ind equals tetrahydroindenyl, and Ind equals indenyl): (1) Me₂Si(Me₄C₅)(N-c-C₁₂H₂₃)TiCl₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrCl₂ activated with an alumoxane; (2) Me₂Si(Me₄C₅)(N-c-C₁₂H₂₃)TiMe₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with a non-coordinating anion activator, (2a) Me₂Si(Me₄C₅)(N-c-C₁₂H₂₃)TiMe₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boron and or triphenylcarbonium tetrakis(pentaflourophenyl)boron; (3) Me₂Si(Me₄C₅)(N-c-C₁₂H₂₃)TiCl₂ and rac-Me₂Si(2-MeInd)₂ZrCl₂ activated with an alumoxane; (4) Me₂Si(Me₄C₅)(N-c-C₁₂H₂₃)TiMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂ activated with a non-coordinating anion activator; (4a) Me₂Si(Me₄C₅)(N-c-C₁₂H₂₃)TiMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂ activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boron and or triphenylcarbonium tetrakis(pentaflourophenyl)boron; (5) Me₂Si(Me₄C₅)(N-1-adamantyl)TiCl₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrCl₂ activated with an alumoxane; (6) Me₂Si(Me₄C₅)(N-1-adamantyl)TiMe₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with a non-coordinating anion activator; (6a) Me₂Si(Me₄C₅)(N-1-adamantyl)TiMe₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boron and or triphenylcarbonium tetrakis(pentaflourophenyl)boron; (7) Me₂Si(Me₄C₅)(N-1-adamantyl)TiCl₂ and rac-Me₂Si(2-MeInd)₂ZrCl₂ activated with an alumoxane; (8) Me₂Si(Me₄C₅)(N-1-adamantyl)TiMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂ activated with a non-coordinating anion activator; (8a) Me₂Si(Me₄C₅)(N-1-adamantyl)TiMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂ activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boron and or triphenylcarbonium tetrakis(pentaflourophenyl)boron; (9) Me₂Si(Me₄C₅)(N-t-butyl)TiCl₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrCl₂ activated with an alumoxane; (10) Me₂Si(Me₄C₅)(N-t-butyl)TiMe₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with a non-coordinating anion activator; (10a) Me₂Si(Me₄C₅)(N-t-butyl)TiMe₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boron and or triphenylcarbonium tetrakis(pentaflourophenyl)boron; (11) Me₂Si(Me₄C₅)(N-t-butyl)TiCl₂ and rac-Me₂Si(2-MeInd) activated with an alumoxane; (12) Me₂Si(Me₄C₅)(N-t-butyl)TiMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂ activated with a non-coordinating anion activator; (12a) Me₂Si(Me₄C₅)(N-t-butyl)TiMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂ activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boron and or triphenylcarbonium tetrakis(pentaflourophenyl)boron; (13) Me₂Si(Me₄C₅)(N-exo-norbornyl)TiCl₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrCl₂ activated with an alumoxane; (14) Me₂Si(Me₄C₅)(N-exo-norbornyl)TiMe₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with a non-coordinating anion activator; (14a) Me₂Si(Me₄C₅)(N-exo-norbornyl)TiMe₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boron and or triphenylcarbonium tetrakis(pentaflourophenyl)boron; (15) Me₂Si(Me₄C₅)(N-exo-norbornyl)TiCl₂ and rac-Me₂Si(2-MeInd)₂ZrCl₂ activated with an alumoxane; (16) Me₂Si(Me₄C₅)(N-exo-norbornyl)TiMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂ activated with a non-coordinating anion activator; (16a) Me₂Si(Me₄C₅)(N-exo-norbornyl)TiMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂ activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boron and or triphenylcarbonium tetrakis(pentaflourophenyl)boron; (17) (P-Et₃SiPh)₂C(Cp)(3,8-di-t-BuFlu)HfCl₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrCl₂ activated with an alumoxane; (18) (p-Et₃SiPh)₂C(Cp)(3,8-di-t-BuFlu)HfMe₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with a non-coordinating anion activator; (18a) (p-Et₃SiPh)₂C(Cp)(3,8-di-t-BuFlu)HfMe₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boron and or triphenylcarbonium tetrakis(pentaflourophenyl)boron; (19) (p-Et₃SiPh)₂C(Cp)(3,8-di-t-BuFlu)HfCl₂ and rac-Me₂Si(2-MeInd)₂ZrCl₂ activated with an alumoxane; (20) (p-Et₃SiPh)₂C(Cp)(3,8-di-t-BuFlu)HfNe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂ activated with a non-coordinating anion activator; (20a) (p-Et₃SiPh)₂C(Cp)(3,8-di-t-BuFlu)HfMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂ activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boron and or triphenylcarbonium tetrakis(pentaflourophenyl)boron; (21) meso-CH₂CH₂(Ind)₂ZrCl₂ and rac-Me₂Si(H₄Ind)₂ZrCl₂ activated with an alumoxane; (22) meso-CH₂CH₂(Ind)₂ZrMe₂ and rac-Me₂Si(H₄Ind)₂ZrMe₂ activated with a non-coordinating anion activator; (22a) meso-CH₂CH₂(Ind)₂ZrMe₂ and rac-Me₂Si(H₄Ind)₂ZrMe₂ activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boron and or triphenylcarbonium tetrakis(pentaflourophenyl)boron; (23) meso-CH₂CH₂(Ind)₂ZrCl₂ and rac-Me₂Si(2-MeInd)₂ZrCl₂ activated with an alumoxane; (24) meso-CH₂CH₂(Ind)₂ZrMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂ activated with a non-coordinating anion activator; (24a) meso-CH₂CH₂(Ind)₂ZrMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂ activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boron and or triphenylcarbonium tetrakis(pentaflourophenyl)boron; (25) meso-Me₂Si(Ind)₂ZrCl₂ and rac-Me₂Si(H₄Ind)₂ZrCl₂ activated with an alumoxane; (26) meso-Me₂Si(Ind)₂ZrMe₂ and rac-Me₂Si(H₄Ind)₂ZrMe₂ activated with a non-coordinating anion activator; (26a) meso-Me₂Si(Ind)₂ZrMe₂ and rac-Me₂Si(H₄Ind)₂ZrMe₂ activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boron and or triphenylcarbonium tetrakis(pentaflourophenyl)boron; (27) meso-Me₂Si(Ind)₂ZrCl₂ and rac-Me₂Si(2-MeInd)₂ZrCl₂ activated with an alumoxane; (28) meso-Me₂Si(Ind)₂ZrMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂ activated with a non-coordinating anion activator; (28a) meso-Me₂Si(Ind)₂ZrMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂ activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boron and or triphenylcarbonium tetrakis(pentaflourophenyl)boron; (29) meso-Me₂Si(2-MeInd)₂ZrCl₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrCl₂ activated with an alumoxane; (30) meso-Me₂Si(2-MeInd)₂ZrMe₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with a non-coordinating anion activator; (30a) meso-Me₂Si(2-MeInd)₂ZrMe₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boron and or triphenylcarbonium tetrakis(pentaflourophenyl)boron; (31) meso-Me₂Si(2-MeInd)₂ZrCl₂ and rac-Me₂Si(2-MeInd)₂ZrCl₂ activated with an alumoxane; (32) meso-Me₂Si(2-MeInd)₂ZrMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂ activated with a non-coordinating anion activator; (32a) meso-Me₂Si(2-MeInd)₂ZrMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂ activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boron and or triphenylcarbonium tetrakis(pentaflourophenyl)boron; (33) meso-CH₂CH₂(2-MeInd)₂ZrCl₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrCl₂ activated with an alumoxane; (34) meso-CH₂CH₂(2-MeInd)₂ZrMe₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with a non-coordinating anion activator; (34a) meso-CH₂CH₂(2-MeInd)₂ZrMe₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boron and or triphenylcarbonium tetrakis(pentaflourophenyl)boron; (35) meso-CH₂CH₂(2-MeInd)₂ZrCl₂ and rac-Me₂Si(2-MeInd)₂ZrCl₂ activated with an alumoxane; (36) meso-CH₂CH₂(2-MeInd)₂ZrMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂ activated with a non-coordinating anion activator; (36a) meso-CH₂CH₂(2-MeInd)₂ZrMe₂ and rac-Me₂Si(2-MeInd)₂ZrMe₂ activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boron and or triphenylcarbonium tetrakis(pentaflourophenyl)boron; (37) meso-Me₂Si(2-Me-4-PhInd)₂ZrCl₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrCl₂ activated with an alumoxane; (38) meso-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with a non-coordinating anion activator; (38a) meso-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ and rac-Me₂Si(2-Me-4-PhInd)₂ZrMe₂ activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boron and or triphenylcarbonium tetrakis(pentaflourophenyl)boron; (39) meso-CH₂CH₂(2-Me-4-PhInd)₂ZrCl₂ and rac-CH₂CH₂(2-Me-4-PhInd)₂ZrCl₂ activated with an alumoxane; (40) meso-CH₂CH₂(2-Me-4-PhInd)₂ZrMe₂ and rac-CH₂CH₂(2-Me-4-PhInd)₂ZrMe₂ activated with a non-coordinating anion activator; (40a) meso-CH₂CH₂(2-Me-4-PhInd)₂ZrMe₂ and rac-CH₂CH₂(2-Me-4-PhInd)₂ZrMe₂ activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boron and or triphenylcarbonium tetrakis(pentaflourophenyl)boron; (41) meso-CH₂CH₂(2-MeInd)₂ZrCl₂ and rac-CH₂CH₂(2-MePhInd)₂ZrCl₂ activated with an alumoxane; (42) meso-CH₂CH₂(2-MeInd)₂ZrMe₂ and rac-CH₂CH₂(2-MeInd)₂ZrMe₂ activated with a non-coordinating anion activator; (42a) meso-CH₂CH₂(2-MeInd)₂ZrMe₂ and rac-CH₂CH₂(2-MeInd)₂ZrMe₂ activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boron and or triphenylcarbonium tetrakis(pentaflourophenyl)boron; (43) meso-CH₂CH₂(Ind)₂ZrCl₂ and rac-CH₂CH₂(Ind)₂ZrCl₂ activated with an alumoxane; (44) meso-CH₂CH₂(Ind)₂ZrMe₂ and rac-CH₂CH₂(Ind)₂ZrMe₂ activated with a non-coordinating anion activator; (44a) meso-CH₂CH₂(Ind)₂ZrMe₂ and rac-CH₂CH₂(Ind)₂ZrMe₂ activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boron and or triphenylcarbonium tetrakis(pentaflourophenyl)boron; (45) meso-Me₂Si(Ind)₂ZrCl₂ and rac-Me₂Si(Ind)₂ZrCl₂ activated with an alumoxane; (46) meso-Me₂Si(Ind)₂ZrMe₂ and rac-Me₂Si(Ind)₂ZrMe₂ activated with a non-coordinating anion activator; (46a) meso-Me₂Si(Ind)₂ZrMe₂ and rac-Me₂Si(Ind)₂ZrMe₂ activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boron and or triphenylcarbonium tetrakis(pentaflourophenyl)boron; (47) meso-CH₂CH₂(Ind)₂ZrCl₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrCl₂ (4,7-Me₂Ind=4,7-dimethylindenyl) activated with an alumoxane; (48) meso-CH₂CH₂(Ind)₂ZrMe₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrMe₂ activated with a non-coordinating anion activator; (48a) meso-CH₂CH₂(Ind)₂ZrMe₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrMe₂ activated with N,N-dimethylanilinium tetrakispentaflourophenyl)boron and or triphenylcarbonium tetrakis(pentaflourophenyl)boron; (49) meso-Me₂Si(Ind)₂ZrCl₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrCl₂ activated with an alumoxane; (50) meso-Me₂Si(Ind)₂ZrMe₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrMe₂ activated with a non-coordinating anion activator; (50a) meso-Me₂Si(Ind)₂ZrMe₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrMe₂ activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boron and or triphenylcarbonium tetrakis(pentaflourophenyl)boron; (51) meso-CH₂CH₂(2-MeInd)₂ZrCl₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrCl₂ (4,7-Me₂Ind=4,7-dimethylindenyl) activated with an alumoxane; (52) meso-CH₂CH₂(2-MeInd)₂ZrMe₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrMe₂ activated with a non-coordinating anion activator; (52a) meso-CH₂CH₂(2-MeInd)₂ZrMe₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrMe₂ activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boron and or triphenylcarbonium tetrakis(pentaflourophenyl)boron; (53) meso-Me₂Si(2-MeInd)₂ZrCl₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrCl₂ activated with an alumoxane; (54) meso-Me₂Si(2-MeInd)₂ZrMe₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrMe₂ activated with a non-coordinating anion activator; or (54a) meso-Me₂Si(2-MeInd)₂ZrMe₂ and rac-CH₂CH₂(4,7-Me₂Ind)₂ZrMe₂ activated with N,N-dimethylanilinium tetrakis(pentaflourophenyl)boron and or triphenylcarbonium tetrakis(pentaflourophenyl)boron.
 46. The process of claim 1 wherein: 1) the first catalyst component is capable of producing a polymer having an Mw of 80,000 or less and a crystallinity of 15% or less under selected polymerization conditions; 2) the a second catalyst component is capable of producing polymer having an Mw of 80,000 or less and a crystallinity of 50% or more at the selected polymerization conditions; 3) the temperature in the reaction zones is greater than 105° C.; 4) the residence time in the reaction zones is 10 minutes or less; 5) the ratio of the first catalyst to the second catalyst is from 1:1 to 20:1; 6) wherein the activity of the catalyst components is at least 100 kilograms of polymer per gram of the catalyst compounds; and wherein at least 80% of the olefins are converted to polymer.
 47. The process of claim 46 wherein: a) the olefins comprise propylene and one or more of butene, pentene, hexene, heptene, octene; nonene, decene, dodecene; and b) the temperature is greater than 110° C.; and c) the residence time is 5 minutes or less; and d) the ratio of the first catalyst to the second catalyst is from 1:1 to 1:10.
 48. The process of claim 1 wherein the step of recovering a branched olefin polymer comprising at least 50 mole % of one or more C3 to C40 olefins comprises: 1) withdrawing polymer solution from the reaction zone; 2) removing at least 10% solvent from the polymer solution; 3) quenching the reaction; 4) devolatilizing the polymer solution to form molten polymer; 5) combining the molten polymer and one or more additives in a static mixer; 6) removing the polymer combination from the static mixer; and 7) pelletizing or drumming the polymer combination.
 49. The process of claim 48 wherein the additives in step 5) comprise nucleating agent.
 50. The process of claim 1 wherein the second catalyst component comprises one or more of: dimethylsiladiyl(2-methyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-ethyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-n-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-iso-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-n-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-iso-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-sec-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-tert-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-methyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dichloride; dimethylsiladiyl(2-ethyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dichloride; dimethylsiladiyl(2-n-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethylsiladiyl(2-iso-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dichloride; dimethylsiladiyl(2-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-methyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; 9-silafluorendiyl(2-ethyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; 9-silafluorendiyl(2-n-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; 9-silafluorendiyl(2-iso-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; 9-silafluorendiyl(2-n-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; 9-silafluorendiyl(2-iso-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; 9-silafluorendiyl(2-sec-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; 9-silafluorendiyl(2-tert-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; 9-silafluorendiyl(2-methyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-ethyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-n-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-iso-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-n-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-iso-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-sec-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-tert-butyl, ⁴-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dichloride; dimethylsiladiyl(2-methyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-ethyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-n-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-iso-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-n-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-iso-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-sec-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-tert-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-methyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl; dimethylsiladiyl(2-ethyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl; dimethylsiladiyl(2-n-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl dimethylsiladiyl(2-iso-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl; dimethylsiladiyl(2-n-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl; dimethylsiladiyl(2-iso-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl; dimethylsiladiyl(2-sec-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl; dimethylsiladiyl(2-tert-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl; 9-silafluorendiyl(2-methyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; 9-silafluorendiyl(2-ethyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; 9-silafluorendiyl(2-n-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; 9-silafluorendiyl(2-iso-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; 9-silafluorendiyl(2-n-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; 9-silafluorendiyl(2-iso-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; 9-silafluorendiyl(2-sec-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; 9-silafluorendiyl(2-tert-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; 9-silafluorendiyl(2-methyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl; 9-silafluorendiyl(2-ethyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl; 9-silafluorendiyl(2-n-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl; 9-silafluorendiyl(2-iso-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl; 9-silafluorendiyl(2-n-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl; 9-silafluorendiyl(2-iso-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl; 9-silafluorendiyl(2-sec-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl; 9-silafluorendiyl(2-tert-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂hafnium dimethyl; dimethylsiladiyl(2-methyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-ethyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-n-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-iso-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-n-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-iso-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-sec-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-tert-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-methyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride; dimethylsiladiyl(2-ethyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride; dimethylsiladiyl(2-n-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride; dimethylsiladiyl(2-iso-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride; dimethylsiladiyl(2-n-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride; dimethylsiladiyl(2-iso-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride; dimethylsiladiyl(2-sec-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride; dimethylsiladiyl(2-tert-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-methyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-ethyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-n-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; 9-silafluorendiyl(2-iso-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; 9-silafluorendiyl(2-n-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; 9-silafluorendiyl(2-iso-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; 9-silafluorendiyl(2-sec-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; 9-silafluorendiyl(2-tert-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; 9-silafluorendiyl(2-methyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-ethyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-n-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂ hafnium dichloride; 9-silafluorendiyl(2-iso-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂ hafnium dichloride; 9-silafluorendiyl(2-n-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-iso-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-sec-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-tert-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dichloride; dimethylsiladiyl(2-methyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-ethyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-n-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-iso-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-n-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-iso-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-sec-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-tert-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-methyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl; dimethylsiladiyl(2-ethyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl; dimethylsiladiyl(2-n-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl; dimethylsiladiyl(2-iso-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl; dimethylsiladiyl(2-n-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl; dimethylsiladiyl(2-iso-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl; dimethylsiladiyl(2-sec-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl; dimethylsiladiyl(2-tert-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl; 9-silafluorendiyl(2-methyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-ethyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl; 9-silafluorendiyl(2-n-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; 9-silafluorendiyl(2-iso-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; 9-silafluorendiyl(2-n-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; 9-silafluorendiyl(2-iso-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; 9-silafluorendiyl(2-sec-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; 9-silafluorendiyl(2-tert-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; 9-silafluorendiyl(2-methyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl; 9-silafluorendiyl(2-ethyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl; 9-silafluorendiyl(2-n-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂ hafnium dimethyl; 9-silafluorendiyl(2-iso-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂ hafnium dimethyl; 9-silafluorendiyl(2-n-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl; 9-silafluorendiyl(2-iso-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl; 9-silafluorendiyl(2-sec-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl; 9-silafluorendiyl(2-tert-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂hafnium dimethyl; dimethylsiladiyl(2-ethyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-n-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride dimethylsiladiyl(2-iso-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-n-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-iso-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-sec-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-tert-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-ethyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride; dimethylsiladiyl(2-n-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride; dimethylsiladiyl(2-iso-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride; dimethylsiladiyl(2-n-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride; dimethylsiladiyl(2-iso-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride; dimethylsiladiyl(2-sec-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride; dimethylsiladiyl(2-tert-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-ethyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; 9-silafluorendiyl(2-n-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; 9-silafluorendiyl(2-iso-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; 9-silafluorendiyl(2-n-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; 9-silafluorendiyl(2-iso-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; 9-silafluorendiyl(2-sec-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; 9-silafluorendiyl(2-tert-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; 9-silafluorendiyl(2-ethyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-n-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-iso-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-n-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-iso-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-sec-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-tert-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dichloride; dimethylsiladiyl(2-ethyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-n-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl dimethylsiladiyl(2-iso-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-n-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-isobutyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-sec-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-tert-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-ethyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl; dimethylsiladiyl(2-n-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl; dimethylsiladiyl(2-iso-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl; dimethylsiladiyl(2-n-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl; dimethylsiladiyl(2-iso-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-sec-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-tert-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; 9-silafluorendiyl(2-ethyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; 9-silafluorendiyl(2-n-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; 9-silafluorendiyl(2-iso-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; 9-silafluorendiyl(2-n-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; 9-silafluorendiyl(2-iso-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; 9-silafluorendiyl(2-sec-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; 9-silafluorendiyl(2-tert-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; 9-silafluorendiyl(2-ethyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl; 9-silafluorendiyl(2-n-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl; 9-silafluorendiyl(2-iso-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl; 9-silafluorendiyl(2-n-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl; 9-silafluorendiyl(2-iso-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl; 9-silafluorendiyl(2-sec-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl; 9-silafluorendiyl(2-tert-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂hafnium dimethyl; dimethylsiladiyl(2-methyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-ethyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-n-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-iso-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-n-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-iso-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-sec-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-tert-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; dimethylsiladiyl(2-methyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride; dimethylsiladiyl(2-ethyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride; dimethylsiladiyl(2-n-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride; dimethylsiladiyl(2-iso-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride; dimethylsiladiyl(2-n-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride; dimethylsiladiyl(2-iso-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride; dimethylsiladiyl(2-sec-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride; dimethylsiladiyl(2-tert-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-methyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; 9-silafluorendiyl(2-ethyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; 9-silafluorendiyl(2-n-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; 9-silafluorendiyl(2-iso-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; 9-silafluorendiyl(2-n-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; 9-silafluorendiyl(2-iso-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; 9-silafluorendiyl(2-sec-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; 9-silafluorendiyl(2-tert-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; 9-silafluorendiyl(2-methyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-ethyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-n-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-iso-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-n-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-iso-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-sec-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-tert-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride; dimethylsiladiyl(2-methyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-ethyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-n-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-iso-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-n-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-iso-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-sec-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-tert-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; dimethylsiladiyl(2-methyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl; dimethylsiladiyl(2-ethyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl; dimethylsiladiyl(2-n-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl; dimethylsiladiyl(2-iso-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl; dimethylsiladiyl(2-n-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl; dimethylsiladiyl(2-iso-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl; dimethylsiladiyl(2-sec-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl; dimethylsiladiyl(2-tert-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl; 9-silafluorendiyl(2-methyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; 9-silafluorendiyl(2-ethyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; 9-silafluorendiyl(2-n-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; 9-silafluorendiyl(2-iso-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; 9-silafluorendiyl(2-n-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; 9-silafluorendiyl(2-iso-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; 9-silafluorendiyl(2-sec-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; 9-silafluorendiyl(2-tert-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; 9-silafluorendiyl(2-methyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl; 9-silafluorendiyl(2-ethyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dichloride; 9-silafluorendiyl(2-n-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl; 9-silafluorendiyl(2-iso-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl; 9-silafluorendiyl(2-n-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl; 9-silafluorendiyl(2-iso-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl; 9-silafluorendiyl(2-sec-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl; 9-silafluorendiyl(2-tert-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂hafnium dimethyl; dimethylsiladiyl(2-methyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylsiladiyl(2-ethyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylsiladiyl(2-n-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylsiladiyl(2-iso-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylsiladiyl(2-n-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylsiladiyl(2-iso-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylsiladiyl(2-sec-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylsiladiyl(2-tert-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylsiladiyl(2-ethyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylsiladiyl(2-n-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylsiladiyl(2-iso-propyl, 4-[3′,5′-bis- trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylsiladiyl(2-n-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylsiladiyl(2-iso-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylsiladiyl(2-sec-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylsiladiyl(2-tert-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylsiladiyl(2-ethyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylsiladiyl(2-n-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylsiladiyl(2-iso-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)η⁴-1,4-diphenyl-1,3-butadiene; dimethylsiladiyl(2-n-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylsiladiyl(2-iso-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylsiladiyl(2-sec-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylsiladiyl(2-tert-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylsiladiyl(2-methyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylsiladiyl(2-ethyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylsiladiyl(2-n-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylsiladiyl(2-iso-propyl, 4- [3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylsiladiyl(2-n-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylsiladiyl(2-iso-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylsiladiyl(2-sec-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylsiladiyl(2-tert-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; 9-silafluorendiyl(2-methyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; 9-silafluorendiyl(2-ethyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; 9-silafluorendiyl(2-n-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; 9-silafluorendiyl(2-iso-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; 9-silafluorendiyl(2-n-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; 9-silafluorendiyl(2-iso-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; 9-silafluorendiyl(2-sec-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; 9-silafluorendiyl(2-tert-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; 9-silafluorendiyl(2-ethyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; 9-silafluorendiyl(2-n-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; 9-silafluorendiyl(2-iso-propyl, 4-[3′,5′-bis- trifluoromethylphenyl]indenyl)2η⁴-1,4-diphenyl-1,3-butadiene; 9-silafluorendiyl(2-n-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; 9-silafluorendiyl(2-iso-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; 9-silafluorendiyl(2-sec-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; 9-silafluorendiyl(2-tert-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)_(2 η) ⁴-1,4-diphenyl-1,3-butadiene; 9-silafluorendiyl(2-ethyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; 9-silafluorendiyl(2-n-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; 9-silafluorendiyl(2-iso-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)η⁴-1,4-diphenyl-1,3-butadiene; 9-silafluorendiyl(2-n-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; 9-silafluorendiyl(2-iso-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; 9-silafluorendiyl(2-sec-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; 9-silafluorendiyl(2-tert-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; 9-silafluorendiyl(2-methyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; 9-silafluorendiyl(2-ethyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; 9-silafluorendiyl(2-n-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; 9-silafluorendiyl(2-iso-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; 9-silafluorendiyl(2-n-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; 9-silafluorendiyl(2-iso-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; 9-silafluorendiyl(2-sec-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; 9-silafluorendiyl(2-tert-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-methyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; dimethylamidoborane(2-ethyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; dimethylamidoborane(2-n-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; dimethylamidoborane(2-iso-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; dimethylamidoborane(2-n-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; dimethylamidoborane(2-iso-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; dimethylamidoborane(2-sec-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; dimethylamidoborane(2-tert-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; dimethylamidoborane(2-ethyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; dimethylamidoborane(2-n-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; dimethylamidoborane(2-iso-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; dimethylamidoborane(2-n-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; dimethylamidoborane(2-iso-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; dimethylamidoborane(2-sec-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; dimethylamidoborane(2-tert-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; dimethylamidoborane(2-ethyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; dimethylamidoborane(2-n-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride dimethylamidoborane(2-iso-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; dimethylamidoborane(2-n-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; dimethylamidoborane(2-iso-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; dimethylamidoborane(2-sec-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; dimethylamidoborane(2-tert-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; dimethylamidoborane(2-methyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; dimethylamidoborane(2-ethyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; dimethylamidoborane(2-n-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; dimethylamidoborane(2-iso-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; dimethylamidoborane(2-n-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; dimethylamidoborane(2-iso-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; dimethylamidoborane(2-sec-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; dimethylamidoborane(2-tert-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; dimethylamidoborane(2-methyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-ethyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-n-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-iso-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-n-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-iso-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)2η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-sec-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-tert-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-ethyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-n-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-iso-propyl, 4-[3′,5′-bis- trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-n-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-iso-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-sec-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-tert-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-ethyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-n-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-iso-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-n-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-iso-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-sec-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-tert-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-methyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-ethyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-n-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-iso-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-n-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-iso-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-sec-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-tert-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; dimethylamidoborane(2-methyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂ zirconium dimethyl; dimethylamidoborane(2-ethyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; dimethylamidoborane(2-n-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; dimethylamidoborane(2-iso-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; dimethylamidoborane(2-n-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; dimethylamidoborane(2-iso-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; dimethylamidoborane(2-sec-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; dimethylamidoborane(2-tert-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; dimethylamidoborane(2-ethyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; dimethylamidoborane(2-n-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; dimethylamidoborane(2-iso-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; dimethylamidoborane(2-n-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; dimethylamidoborane(2-iso-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; dimethylamidoborane(2-sec-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; dimethylamidoborane(2-tert-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; dimethylamidoborane(2-ethyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; dimethylamidoborane(2-n-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl dimethylamidoborane(2-iso-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; dimethylamidoborane(2-n-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; dimethylamidoborane(2-iso-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; dimethylamidoborane(2-sec-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; dimethylamidoborane(2-tert-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; dimethylamidoborane(2-methyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; dimethylamidoborane(2-ethyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; dimethylamidoborane(2-n-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; dimethylamidoborane(2-iso-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; dimethylamidoborane(2-n-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; dimethylamidoborane(2-iso-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; dimethylamidoborane(2-sec-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; dimethylamidoborane(2-tert-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; diisopropylamidoborane(2-methyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; diisopropylamidoborane(2-ethyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; diisopropylamidoborane(2-n-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; diisopropylamidoborane(2-iso-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; diisopropylamidoborane(2-n-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; diisopropylamidoborane(2-iso-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; diisopropylamidoborane(2-sec-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; diisopropylamidoborane(2-tert-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; diisopropylamidoborane(2-ethyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; diisopropylamidoborane(2-n-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; diisopropylamidoborane(2-iso-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; diisopropylamidoborane(2-n-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; diisopropylamidoborane(2-iso-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; diisopropylamidoborane(2-sec-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; diisopropylamidoborane(2-tert-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; diisopropylamidoborane(2-ethyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; diisopropylamidoborane(2-n-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride diisopropylamidoborane(2-iso-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; diisopropylamidoborane(2-n-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; diisopropylamidoborane(2-iso-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; diisopropylamidoborane(2-sec-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; diisopropylamidoborane(2-tert-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; diisopropylamidoborane(2-methyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; diisopropylamidoborane(2-ethyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; diisopropylamidoborane(2-n-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; diisopropylamidoborane(2-iso-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; diisopropylamidoborane(2-n-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; diisopropylamidoborane(2-iso-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; diisopropylamidoborane(2-sec-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; diisopropylamidoborane(2-tert-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; diisopropylamidoborane(2-methyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-ethyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-n-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-iso-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-n-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-iso-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)_(2 η) ⁴-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-sec-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-tert-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-ethyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)_(2 η) ⁴-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-n-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-iso-propyl, 4-[3′,5′-bis- trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-n-butyl, 4-[^(3′,5)′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-iso-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-sec-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-tert-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-ethyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-n-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-iso-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)η⁴-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-n-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-iso-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-sec-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂η₄-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-tert-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-methyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-ethyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-n-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-iso-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-n-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-iso-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-sec-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-tert-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; diisopropylamidoborane(2-methyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; diisopropylamidoborane(2-ethyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; diisopropylamidoborane(2-n-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; diisopropylamidoborane(2-iso-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; diisopropylamidoborane(2-n-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; diisopropylamidoborane(2-iso-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; diisopropylamidoborane(2-sec-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; diisopropylamidoborane(2-tert-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; diisopropylamidoborane(2-ethyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; diisopropylamidoborane(2-n-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; diisopropylamidoborane(2-iso-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; diisopropylamidoborane(2-n-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; diisopropylamidoborane(2-iso-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; diisopropylamidoborane(2-sec-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; diisopropylamidoborane(2-tert-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; diisopropylamidoborane(2-ethyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; diisopropylamidoborane(2-n-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl diisopropylamidoborane(2-iso-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; diisopropylamidoborane(2-n-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; diisopropylamidoborane(2-iso-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; diisopropylamidoborane(2-sec-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; diisopropylamidoborane(2-tert-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; diisopropylamidoborane(2-methyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; diisopropylamidoborane(2-ethyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; diisopropylamidoborane(2-n-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; diisopropylamidoborane(2-iso-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; diisopropylamidoborane(2-n-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; diisopropylamidoborane(2-iso-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; diisopropylamidoborane(2-sec-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; diisopropylamidoborane(2-tert-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; bis(trimethylsilyl)amidoborane(2-methyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; bis(trimethylsilyl)amidoborane(2-ethyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; bis(trimethylsilyl)amidoborane(2-n-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; bis(trimethylsilyl)amidoborane(2-iso-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; bis(trimethylsilyl)amidoborane(2-n-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; bis(trimethylsilyl)amidoborane(2-iso-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; bis(trimethylsilyl)amidoborane(2-sec-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; bis(trimethylsilyl)amidoborane(2-tert-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dichloride; bis(trimethylsilyl)amidoborane(2-ethyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; bis(trimethylsilyl)amidoborane(2-n-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; bis(trimethylsilyl)amidoborane(2-iso-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; bis(trimethylsilyl)amidoborane(2-n-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; bis(trimethylsilyl)amidoborane(2-iso-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; bis(trimethylsilyl)amidoborane(2-sec-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; bis(trimethylsilyl)amidoborane(2-tert-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dichloride; bis(trimethylsilyl)amidoborane(2-ethyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; bis(trimethylsilyl)amidoborane(2-n-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride bis(trimethylsilyl)amidoborane(2-iso-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; bis(trimethylsilyl)amidoborane(2-n-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; bis(trimethylsilyl)amidoborane(2-iso-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; bis(trimethylsilyl)amidoborane(2-sec-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; bis(trimethylsilyl)amidoborane(2-tert-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dichloride; bis(trimethylsilyl)amidoborane(2-methyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; bis(trimethylsilyl)amidoborane(2-ethyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; bis(trimethylsilyl)amidoborane(2-n-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; bis(trimethylsilyl)amidoborane(2-iso-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; bis(trimethylsilyl)amidoborane(2-n-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; bis(trimethylsilyl)amidoborane(2-iso-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; bis(trimethylsilyl)amidoborane(2-sec-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; bis(trimethylsilyl)amidoborane(2-tert-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dichloride; bis(trimethylsilyl)amidoborane(2-methyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; bis(trimethylsilyl)amidoborane(2-ethyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; bis(trimethylsilyl)amidoborane(2-n-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; bis(trimethylsilyl)amidoborane(2-iso-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; bis(trimethylsilyl)amidoborane(2-n-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; bis(trimethylsilyl)amidoborane(2-iso-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; bis(trimethylsilyl)amidoborane(2-sec-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; bis(trimethylsilyl)amidoborane(2-tert-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; bis(trimethylsilyl)amidoborane(2-ethyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; bis(trimethylsilyl)amidoborane(2-n-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; bis(trimethylsilyl)amidoborane(2-iso-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; bis(trimethylsilyl)amidoborane(2-n-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; bis(trimethylsilyl)amidoborane(2-iso-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; bis(trimethylsilyl)amidoborane(2-sec-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; bis(trimethylsilyl)amidoborane(2-tert-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; bis(trimethylsilyl)amidoborane(2-ethyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; bis(trimethylsilyl)amidoborane(2-n-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; bis(trimethylsilyl)amidoborane(2-iso-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)η⁴-1,4-diphenyl-1,3-butadiene; bis(trimethylsilyl)amidoborane(2-n-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; bis(trimethylsilyl)amidoborane(2-iso-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; bis(trimethylsilyl)amidoborane(2-sec-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; bis(trimethylsilyl)amidoborane(2-tert-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; bis(trimethylsilyl)amidoborane(2-methyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; bis(trimethylsilyl)amidoborane(2-ethyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; bis(trimethylsilyl)amidoborane(2-n-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; bis(trimethylsilyl)amidoborane(2-iso-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; bis(trimethylsilyl)amidoborane(2-n-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; bis(trimethylsilyl)amidoborane(2-iso-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; bis(trimethylsilyl)amidoborane(2-sec-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; bis(trimethylsilyl)amidoborane(2-tert-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂η⁴-1,4-diphenyl-1,3-butadiene; bis(trimethylsilyl)amidoborane(2-methyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; bis(trimethylsilyl)amidoborane(2-ethyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; bis(trimethylsilyl)amidoborane(2-n-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; bis(trimethylsilyl)amidoborane(2-iso-propyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; bis(trimethylsilyl)amidoborane(2-n-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; bis(trimethylsilyl)amidoborane(2-iso-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; bis(trimethylsilyl)amidoborane(2-sec-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; bis(trimethylsilyl)amidoborane(2-tert-butyl, 4-[3′,5′-di-tbutylphenyl]indenyl)₂zirconium dimethyl; bis(trimethylsilyl)amidoborane(2-ethyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; bis(trimethylsilyl)amidoborane(2-n-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; bis(trimethylsilyl)amidoborane(2-iso-propyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; bis(trimethylsilyl)amidoborane(2-n-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; bis(trimethylsilyl)amidoborane(2-iso-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; bis(trimethylsilyl)amidoborane(2-sec-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; bis(trimethylsilyl)amidoborane(2-tert-butyl, 4-[3′,5′-bis-trifluoromethylphenyl]indenyl)₂zirconium dimethyl; bis(trimethylsilyl)amidoborane(2-ethyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; bis(trimethylsilyl)amidoborane(2-n-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl bis(trimethylsilyl)amidoborane(2-iso-propyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; bis(trimethylsilyl)amidoborane(2-n-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; bis(trimethylsilyl)amidoborane(2-iso-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; bis(trimethylsilyl)amidoborane(2-sec-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; bis(trimethylsilyl)amidoborane(2-tert-butyl, 4-[3′,5′-di-iso-propylphenyl]indenyl)₂zirconium dimethyl; bis(trimethylsilyl)amidoborane(2-methyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; bis(trimethylsilyl)amidoborane(2-ethyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; bis(trimethylsilyl)amidoborane(2-n-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; bis(trimethylsilyl)amidoborane(2-iso-propyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; bis(trimethylsilyl)amidoborane(2-n-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; bis(trimethylsilyl)amidoborane(2-iso-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; bis(trimethylsilyl)amidoborane(2-sec-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl; or bis(trimethylsilyl)amidoborane(2-tert-butyl, 4-[3′,5′-di-phenylphenyl]indenyl)₂zirconium dimethyl.
 51. The process of claim 1 wherein the first catalyst component is also present in the second reaction zone.
 52. The process of claim 1 wherein one catalyst component is present in at least one reaction zone and the other catalyst component is present in the second reaction zone.
 53. The process of claim 1 wherein 3% or more of the combined catalyst components is not injected into the first reaction zone.
 54. The process of claim 1 wherein hydrogen is introduced into a reaction zone.
 55. The process of claim 1 wherein the temperature is different in the reaction zones.
 56. The process of claim 1 wherein the temperature in a reaction zone is varied. 